57568149 has 24 divisors (see below), whose sum is σ = 88013952. Its totient is φ = 36183840.

The previous prime is 57568139. The next prime is 57568153. The reversal of 57568149 is 94186575.

57568149 is a `hidden beast` number, since 575 + 68 + 14 + 9 = 666.

It is not a de Polignac number, because 57568149 - 2¹⁵ = 57535381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57568139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12739 + ... + 16655.

It is an arithmetic number, because the mean of its divisors is an integer number (3667248).

Almost surely, 2^57568149 is an apocalyptic number.

It is an amenable number.

57568149 is a deficient number, since it is larger than the sum of its proper divisors (30445803).

57568149 is a wasteful number, since it uses less digits than its factorization.

57568149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017 (or 4014 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 57568149 is about 7587.3677253709. The cubic root of 57568149 is about 386.1245559895.

The spelling of 57568149 in words is "fifty-seven million, five hundred sixty-eight thousand, one hundred forty-nine".