1225

1,225 is an odd composite number composed of two prime numbers multiplied together.

What does the number 1225 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 9 divisors.

1225 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of nine divisors.

Prime factorization of 1225:

5² × 7²

(5 × 5 × 7 × 7)

See below for interesting mathematical facts about the number 1225 from the Numbermatics database.

Names of 1225

Cardinal: 1225 can be written as One thousand, two hundred twenty-five.

Scientific notation

Scientific notation: 1.225 × 10³

Factors of 1225

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 4
Sum of prime factors: 12

Divisors of 1225

Number of divisors d(n): 9
Complete list of divisors:
1 5 7 25 35 49 175 245 1225
Sum of all divisors σ(n): 1767
Sum of proper divisors (its aliquot sum) s(n): 542
1225 is a deficient number, because the sum of its proper divisors (542) is less than itself. Its deficiency is 683

Bases of 1225

Binary: 10011001001₂
Hexadecimal: 0x4C9
Base-36: Y1

Squares and roots of 1225

1225 squared (1225²) is 1500625
1225 cubed (1225³) is 1838265625
1225 is a perfect square number. Its square root is 35
The cube root of 1225 is 10.6998748057

Scales and comparisons

How big is 1225?

1,225 seconds is equal to 20 minutes, 25 seconds.
To count from 1 to 1,225 would take you about twenty minutes.

This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
A cube with a volume of 1225 cubic inches would be around 0.9 feet tall.

Recreational maths with 1225

1225 backwards is 5221
The number of decimal digits it has is: 4
The sum of 1225's digits is 10
More coming soon!

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The information we have on file for 1225 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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