256464552 has 16 divisors (see below), whose sum is σ = 641161440. Its totient is φ = 85488176.

The previous prime is 256464493. The next prime is 256464569. The reversal of 256464552 is 255464652.

256464552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 256464552.

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, 5342988 + ... + 5343035.

It is an arithmetic number, because the mean of its divisors is an integer number (40072590).

Almost surely, 2^256464552 is an apocalyptic number.

It is an amenable number.

256464552 is an abundant number, since it is smaller than the sum of its proper divisors (384696888).

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

256464552 is a wasteful number, since it uses less digits than its factorization.

256464552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10686032 (or 10686028 counting only the distinct ones).

The product of its digits is 288000, while the sum is 39.

The square root of 256464552 is about 16014.5106700142. The cubic root of 256464552 is about 635.3442669965.

The spelling of 256464552 in words is "two hundred fifty-six million, four hundred sixty-four thousand, five hundred fifty-two".