25464768 has 56 divisors (see below), whose sum is σ = 77004672. Its totient is φ = 7275264.

The previous prime is 25464767. The next prime is 25464787. The reversal of 25464768 is 86746452.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25464763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8130 + ... + 10817.

Almost surely, 2^25464768 is an apocalyptic number.

25464768 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25464768 is an abundant number, since it is smaller than the sum of its proper divisors (51539904).

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

25464768 is a wasteful number, since it uses less digits than its factorization.

25464768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18969 (or 18959 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 25464768 is about 5046.2627755598. The cubic root of 25464768 is about 294.2026461657.

The spelling of 25464768 in words is "twenty-five million, four hundred sixty-four thousand, seven hundred sixty-eight".