25868904 has 32 divisors (see below), whose sum is σ = 65772000. Its totient is φ = 8476352.

The previous prime is 25868893. The next prime is 25868971. The reversal of 25868904 is 40986852.

It is a super-2 number, since 2×25868904² = 1338400388322432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7719 + ... + 10550.

It is an arithmetic number, because the mean of its divisors is an integer number (2055375).

Almost surely, 2^25868904 is an apocalyptic number.

25868904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25868904 is an abundant number, since it is smaller than the sum of its proper divisors (39903096).

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

25868904 is a wasteful number, since it uses less digits than its factorization.

25868904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18337 (or 18333 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 25868904 is about 5086.1482479377. The cubic root of 25868904 is about 295.7508556074.

The spelling of 25868904 in words is "twenty-five million, eight hundred sixty-eight thousand, nine hundred four".