57657243 has 16 divisors (see below), whose sum is σ = 88121600. Its totient is φ = 32848416.

The previous prime is 57657239. The next prime is 57657253. The reversal of 57657243 is 34275675.

It is not a de Polignac number, because 57657243 - 2² = 57657239 is a prime.

It is a super-2 number, since 2×57657243² = 6648715340722098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57657253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3396 + ... + 11262.

It is an arithmetic number, because the mean of its divisors is an integer number (5507600).

Almost surely, 2^57657243 is an apocalyptic number.

57657243 is a deficient number, since it is larger than the sum of its proper divisors (30464357).

57657243 is a wasteful number, since it uses less digits than its factorization.

57657243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8226.

The product of its digits is 176400, while the sum is 39.

The square root of 57657243 is about 7593.2366616615. The cubic root of 57657243 is about 386.3236455335.

The spelling of 57657243 in words is "fifty-seven million, six hundred fifty-seven thousand, two hundred forty-three".