256488532 has 12 divisors (see below), whose sum is σ = 448978516. Its totient is φ = 128208960.

The previous prime is 256488527. The next prime is 256488559. The reversal of 256488532 is 235884652.

256488532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 93006736 + 163481796 = 9644^2 + 12786^2 .

It is a congruent number.

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, 14182 + ... + 26722.

Almost surely, 2^256488532 is an apocalyptic number.

It is an amenable number.

256488532 is a deficient number, since it is larger than the sum of its proper divisors (192489984).

256488532 is a wasteful number, since it uses less digits than its factorization.

256488532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17658 (or 17656 counting only the distinct ones).

The product of its digits is 460800, while the sum is 43.

The square root of 256488532 is about 16015.2593485088. The cubic root of 256488532 is about 635.3640684084.

The spelling of 256488532 in words is "two hundred fifty-six million, four hundred eighty-eight thousand, five hundred thirty-two".