725501256 has 16 divisors (see below), whose sum is σ = 1813753200. Its totient is φ = 241833744.

The previous prime is 725501221. The next prime is 725501267. The reversal of 725501256 is 652105527.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15114586 + ... + 15114633.

It is an arithmetic number, because the mean of its divisors is an integer number (113359575).

Almost surely, 2^725501256 is an apocalyptic number.

It is an amenable number.

725501256 is an abundant number, since it is smaller than the sum of its proper divisors (1088251944).

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

725501256 is a wasteful number, since it uses less digits than its factorization.

725501256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30229228 (or 30229224 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 725501256 is about 26935.1305175973. The cubic root of 725501256 is about 898.5578780935.

The spelling of 725501256 in words is "seven hundred twenty-five million, five hundred one thousand, two hundred fifty-six".