256004516 has 12 divisors (see below), whose sum is σ = 448356300. Its totient is φ = 127902720.

The previous prime is 256004509. The next prime is 256004549. The reversal of 256004516 is 615400652.

It can be written as a sum of positive squares in 2 ways, for example, as 248692900 + 7311616 = 15770^2 + 2704^2 .

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, 18941 + ... + 29508.

It is an arithmetic number, because the mean of its divisors is an integer number (37363025).

Almost surely, 2^256004516 is an apocalyptic number.

It is an amenable number.

256004516 is a deficient number, since it is larger than the sum of its proper divisors (192351784).

256004516 is a wasteful number, since it uses less digits than its factorization.

256004516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49774 (or 49772 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 256004516 is about 16000.1411243776. The cubic root of 256004516 is about 634.9641544649.

The spelling of 256004516 in words is "two hundred fifty-six million, four thousand, five hundred sixteen".