257591113 has 32 divisors (see below), whose sum is σ = 303564800. Its totient is φ = 216530496.

The previous prime is 257591111. The next prime is 257591119. The reversal of 257591113 is 311195752.

It is not a de Polignac number, because 257591113 - 2¹ = 257591111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257591111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 838906 + ... + 839212.

It is an arithmetic number, because the mean of its divisors is an integer number (9486400).

Almost surely, 2^257591113 is an apocalyptic number.

It is an amenable number.

257591113 is a deficient number, since it is larger than the sum of its proper divisors (45973687).

257591113 is a wasteful number, since it uses less digits than its factorization.

257591113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461.

The product of its digits is 9450, while the sum is 34.

The square root of 257591113 is about 16049.6452608773. The cubic root of 257591113 is about 636.2731914767.

The spelling of 257591113 in words is "two hundred fifty-seven million, five hundred ninety-one thousand, one hundred thirteen".