# 2521

## 2,521 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 2521 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

2521 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 2521:

### 2521

See below for interesting mathematical facts about the number 2521 from the Numbermatics database.

### Names of 2521

• Cardinal: 2521 can be written as Two thousand, five hundred twenty-one.

### Scientific notation

• Scientific notation: 2.521 × 103

### Factors of 2521

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 2521

### Divisors of 2521

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 2522
• Sum of proper divisors (its aliquot sum) s(n): 1
• 2521 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 2520

### Bases of 2521

• Binary: 1001110110012
• Base-36: 1Y1

### Squares and roots of 2521

• 2521 squared (25212) is 6355441
• 2521 cubed (25213) is 16022066761
• The square root of 2521 is 50.2095608425
• The cube root of 2521 is 13.6099840183

### Scales and comparisons

How big is 2521?
• 2,521 seconds is equal to 42 minutes, 1 second.
• To count from 1 to 2,521 would take you about forty-two 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 2521 cubic inches would be around 1.1 feet tall.

### Recreational maths with 2521

• 2521 backwards is 1252
• The number of decimal digits it has is: 4
• The sum of 2521's digits is 10
• More coming soon!