25856432 has 20 divisors (see below), whose sum is σ = 57253776. Its totient is φ = 11081280.

The previous prime is 25856431. The next prime is 25856477. The reversal of 25856432 is 23465852.

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

It is a junction number, because it is equal to n+sod(n) for n = 25856392 and 25856401.

It is not an unprimeable number, because it can be changed into a prime (25856431) 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, 115319 + ... + 115542.

Almost surely, 2^25856432 is an apocalyptic number.

It is an amenable number.

25856432 is an abundant number, since it is smaller than the sum of its proper divisors (31397344).

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

25856432 is a wasteful number, since it uses less digits than its factorization.

25856432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230876 (or 230870 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 25856432 is about 5084.9220249675. The cubic root of 25856432 is about 295.7033185127.

The spelling of 25856432 in words is "twenty-five million, eight hundred fifty-six thousand, four hundred thirty-two".