25464656 has 20 divisors (see below), whose sum is σ = 56386272. Its totient is φ = 10913376.

The previous prime is 25464653. The next prime is 25464667. The reversal of 25464656 is 65646452.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25464653) 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, 113570 + ... + 113793.

Almost surely, 2^25464656 is an apocalyptic number.

It is an amenable number.

25464656 is an abundant number, since it is smaller than the sum of its proper divisors (30921616).

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

25464656 is a wasteful number, since it uses less digits than its factorization.

25464656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227378 (or 227372 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 25464656 is about 5046.2516782261. The cubic root of 25464656 is about 294.2022148411.

The spelling of 25464656 in words is "twenty-five million, four hundred sixty-four thousand, six hundred fifty-six".