# 1525

## 1,525 is an odd composite number composed of two prime numbers multiplied together.

What does the number 1525 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

1525 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

## Prime factorization of 1525:

### 52 × 61

(5 × 5 × 61)

See below for interesting mathematical facts about the number 1525 from the Numbermatics database.

### Names of 1525

• Cardinal: 1525 can be written as One thousand, five hundred twenty-five.

### Scientific notation

• Scientific notation: 1.525 × 103

### Factors of 1525

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 66

### Divisors of 1525

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 1922
• Sum of proper divisors (its aliquot sum) s(n): 397
• 1525 is a deficient number, because the sum of its proper divisors (397) is less than itself. Its deficiency is 1128

### Bases of 1525

• Binary: 101111101012
• Base-36: 16D

### Squares and roots of 1525

• 1525 squared (15252) is 2325625
• 1525 cubed (15253) is 3546578125
• The square root of 1525 is 39.0512483795
• The cube root of 1525 is 11.5103875899

### Scales and comparisons

How big is 1525?
• 1,525 seconds is equal to 25 minutes, 25 seconds.
• To count from 1 to 1,525 would take you about twenty-five 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 1525 cubic inches would be around 1 feet tall.

### Recreational maths with 1525

• 1525 backwards is 5251
• The number of decimal digits it has is: 4
• The sum of 1525's digits is 13
• More coming soon!