256625056 has 24 divisors (see below), whose sum is σ = 505842624. Its totient is φ = 128157120.

The previous prime is 256625051. The next prime is 256625063. The reversal of 256625056 is 650526652.

256625056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (256625051) 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, 24751 + ... + 33553.

It is an arithmetic number, because the mean of its divisors is an integer number (21076776).

Almost surely, 2^256625056 is an apocalyptic number.

It is an amenable number.

256625056 is a deficient number, since it is larger than the sum of its proper divisors (249217568).

256625056 is an equidigital number, since it uses as much as digits as its factorization.

256625056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9724 (or 9716 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 256625056 is about 16019.5210914684. The cubic root of 256625056 is about 635.4767791763.

The spelling of 256625056 in words is "two hundred fifty-six million, six hundred twenty-five thousand, fifty-six".