256553032 has 8 divisors (see below), whose sum is σ = 481036950. Its totient is φ = 128276512.

The previous prime is 256552999. The next prime is 256553039. The reversal of 256553032 is 230355652.

It can be written as a sum of positive squares in only one way, i.e., 248566756 + 7986276 = 15766^2 + 2826^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 256552985 and 256553003.

It is not an unprimeable number, because it can be changed into a prime (256553039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16034557 + ... + 16034572.

Almost surely, 2^256553032 is an apocalyptic number.

It is an amenable number.

256553032 is a deficient number, since it is larger than the sum of its proper divisors (224483918).

256553032 is a wasteful number, since it uses less digits than its factorization.

256553032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32069135 (or 32069131 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 256553032 is about 16017.2729264379. The cubic root of 256553032 is about 635.4173229632.

The spelling of 256553032 in words is "two hundred fifty-six million, five hundred fifty-three thousand, thirty-two".