256583364 has 24 divisors (see below), whose sum is σ = 602716800. Its totient is φ = 84953184.

The previous prime is 256583347. The next prime is 256583381. The reversal of 256583364 is 463385652.

256583364 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 (256583347) and next prime (256583381).

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, 69964 + ... + 73539.

It is an arithmetic number, because the mean of its divisors is an integer number (25113200).

Almost surely, 2^256583364 is an apocalyptic number.

It is an amenable number.

256583364 is an abundant number, since it is smaller than the sum of its proper divisors (346133436).

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

256583364 is a wasteful number, since it uses less digits than its factorization.

256583364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143659 (or 143657 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The square root of 256583364 is about 16018.2197512707. The cubic root of 256583364 is about 635.4423635543.

The spelling of 256583364 in words is "two hundred fifty-six million, five hundred eighty-three thousand, three hundred sixty-four".