25157 has 4 divisors (see below), whose sum is σ = 27456. Its totient is φ = 22860.

The previous prime is 25153. The next prime is 25163. The reversal of 25157 is 75152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25157 - 2² = 25153 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25157.

It is not an unprimeable number, because it can be changed into a prime (25153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1133 + ... + 1154.

It is an arithmetic number, because the mean of its divisors is an integer number (6864).

2²⁵¹⁵⁷ is an apocalyptic number.

It is an amenable number.

25157 is a deficient number, since it is larger than the sum of its proper divisors (2299).

25157 is a wasteful number, since it uses less digits than its factorization.

25157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298.

The product of its digits is 350, while the sum is 20.

The square root of 25157 is about 158.6095835692. The cubic root of 25157 is about 29.3012591335.

The spelling of 25157 in words is "twenty-five thousand, one hundred fifty-seven".