256056544 has 24 divisors (see below), whose sum is σ = 521496360. Its totient is φ = 123613056.

The previous prime is 256056523. The next prime is 256056551. The reversal of 256056544 is 445650652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137034 + ... + 138889.

It is an arithmetic number, because the mean of its divisors is an integer number (21729015).

Almost surely, 2^256056544 is an apocalyptic number.

It is an amenable number.

256056544 is an abundant number, since it is smaller than the sum of its proper divisors (265439816).

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

256056544 is a wasteful number, since it uses less digits than its factorization.

256056544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275962 (or 275954 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The square root of 256056544 is about 16001.7669024392. The cubic root of 256056544 is about 635.0071663068.

The spelling of 256056544 in words is "two hundred fifty-six million, fifty-six thousand, five hundred forty-four".