256004588 has 24 divisors (see below), whose sum is σ = 519654912. Its totient is φ = 108077904.

The previous prime is 256004579. The next prime is 256004597. The reversal of 256004588 is 885400652.

256004588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (256004579) and next prime (256004597).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66356 + ... + 70107.

It is an arithmetic number, because the mean of its divisors is an integer number (21652288).

Almost surely, 2^256004588 is an apocalyptic number.

256004588 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

256004588 is an abundant number, since it is smaller than the sum of its proper divisors (263650324).

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

256004588 is a wasteful number, since it uses less digits than its factorization.

256004588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136541 (or 136539 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 256004588 is about 16000.1433743576. The cubic root of 256004588 is about 634.9642139917.

The spelling of 256004588 in words is "two hundred fifty-six million, four thousand, five hundred eighty-eight".