256555032 has 16 divisors (see below), whose sum is σ = 641387640. Its totient is φ = 85518336.

The previous prime is 256555027. The next prime is 256555063. The reversal of 256555032 is 230555652.

It is a junction number, because it is equal to n+sod(n) for n = 256554984 and 256555002.

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, 5344873 + ... + 5344920.

Almost surely, 2^256555032 is an apocalyptic number.

It is an amenable number.

256555032 is an abundant number, since it is smaller than the sum of its proper divisors (384832608).

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

256555032 is a wasteful number, since it uses less digits than its factorization.

256555032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10689802 (or 10689798 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 256555032 is about 16017.3353589166. The cubic root of 256555032 is about 635.4189741245.

The spelling of 256555032 in words is "two hundred fifty-six million, five hundred fifty-five thousand, thirty-two".