Number 25 - properties and curiosities

25 (number)

25

Number 25 properties

  • Perfect square
  • Automorphic
  • 25 is an odd number.
  • 25 is a perfect square (5 × 5).

Prime factorization

Prime factorization of 25: 5^2.

Divisors

Divisor count: 3

1, 5, 25

Factors of 25 are: 1, 5, 25.

Representations

In octal, 25 is represented as 31.

In binary, 25 is represented as 11001.

In hex, 25 is represented as 19.

Roman numeral: XXV

Curiosities

  • 25 is a perfect square, so it forms a square grid with equal side lengths.

Quick answers

Is 25 prime?
No, 25 is not prime.

What are the factors of 25?
1, 5, 25

What is 25 in binary?
11001