257268556 has 24 divisors (see below), whose sum is σ = 463680000. Its totient is φ = 124844304.

The previous prime is 257268533. The next prime is 257268587. The reversal of 257268556 is 655862752.

257268556 is digitally balanced in base 3, 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 in 7 ways as a sum of consecutive naturals, for example, 11745 + ... + 25543.

It is an arithmetic number, because the mean of its divisors is an integer number (19320000).

Almost surely, 2^257268556 is an apocalyptic number.

It is an amenable number.

257268556 is a deficient number, since it is larger than the sum of its proper divisors (206411444).

257268556 is a wasteful number, since it uses less digits than its factorization.

257268556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13941 (or 13939 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 46.

The square root of 257268556 is about 16039.5933863674. The cubic root of 257268556 is about 636.0074989557.

The spelling of 257268556 in words is "two hundred fifty-seven million, two hundred sixty-eight thousand, five hundred fifty-six".