256265504 has 24 divisors (see below), whose sum is σ = 550389168. Its totient is φ = 116484160.

The previous prime is 256265473. The next prime is 256265507. The reversal of 256265504 is 405562652.

It is not an unprimeable number, because it can be changed into a prime (256265507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363662 + ... + 364365.

It is an arithmetic number, because the mean of its divisors is an integer number (22932882).

Almost surely, 2^256265504 is an apocalyptic number.

It is an amenable number.

256265504 is an abundant number, since it is smaller than the sum of its proper divisors (294123664).

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

256265504 is a wasteful number, since it uses less digits than its factorization.

256265504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728048 (or 728040 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 256265504 is about 16008.2948498583. The cubic root of 256265504 is about 635.1798560530.

The spelling of 256265504 in words is "two hundred fifty-six million, two hundred sixty-five thousand, five hundred four".