57564442 has 24 divisors (see below), whose sum is σ = 94821084. Its totient is φ = 26193024.

The previous prime is 57564439. The next prime is 57564443. The reversal of 57564442 is 24446575.

It can be written as a sum of positive squares in 6 ways, for example, as 6713281 + 50851161 = 2591^2 + 7131^2 .

It is not an unprimeable number, because it can be changed into a prime (57564443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23508 + ... + 25840.

Almost surely, 2^57564442 is an apocalyptic number.

57564442 is a deficient number, since it is larger than the sum of its proper divisors (37256642).

57564442 is a wasteful number, since it uses less digits than its factorization.

57564442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434 (or 2421 counting only the distinct ones).

The product of its digits is 134400, while the sum is 37.

The square root of 57564442 is about 7587.1234338186. The cubic root of 57564442 is about 386.1162678737.

The spelling of 57564442 in words is "fifty-seven million, five hundred sixty-four thousand, four hundred forty-two".