25328957 has 16 divisors (see below), whose sum is σ = 28080000. Its totient is φ = 22739904.

The previous prime is 25328951. The next prime is 25328987. The reversal of 25328957 is 75982352.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25328957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25328951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64919 + ... + 65307.

It is an arithmetic number, because the mean of its divisors is an integer number (1755000).

Almost surely, 2^25328957 is an apocalyptic number.

It is an amenable number.

25328957 is a deficient number, since it is larger than the sum of its proper divisors (2751043).

25328957 is a wasteful number, since it uses less digits than its factorization.

25328957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580.

The product of its digits is 151200, while the sum is 41.

The square root of 25328957 is about 5032.7881934371. The cubic root of 25328957 is about 293.6786908845.

The spelling of 25328957 in words is "twenty-five million, three hundred twenty-eight thousand, nine hundred fifty-seven".