25318790 has 48 divisors (see below), whose sum is σ = 53507952. Its totient is φ = 8600256.

The previous prime is 25318757. The next prime is 25318801. The reversal of 25318790 is 9781352.

It is a super-2 number, since 2×25318790² = 1282082254128200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 25318790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79712 + ... + 80028.

It is an arithmetic number, because the mean of its divisors is an integer number (1114749).

Almost surely, 2^25318790 is an apocalyptic number.

25318790 is an abundant number, since it is smaller than the sum of its proper divisors (28189162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25318790 is a wasteful number, since it uses less digits than its factorization.

25318790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 25318790 is about 5031.7780157714. The cubic root of 25318790 is about 293.6393915845.

The spelling of 25318790 in words is "twenty-five million, three hundred eighteen thousand, seven hundred ninety".