256251244 has 6 divisors (see below), whose sum is σ = 448439684. Its totient is φ = 128125620.

The previous prime is 256251227. The next prime is 256251269. The reversal of 256251244 is 442152652.

256251244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32031402 + ... + 32031409.

Almost surely, 2^256251244 is an apocalyptic number.

It is an amenable number.

256251244 is a deficient number, since it is larger than the sum of its proper divisors (192188440).

256251244 is a wasteful number, since it uses less digits than its factorization.

256251244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64062815 (or 64062813 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 256251244 is about 16007.8494495669. The cubic root of 256251244 is about 635.1680742191.

The spelling of 256251244 in words is "two hundred fifty-six million, two hundred fifty-one thousand, two hundred forty-four".