57564636 has 24 divisors (see below), whose sum is σ = 134463504. Its totient is φ = 19167360.

The previous prime is 57564583. The next prime is 57564641. The reversal of 57564636 is 63646575.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12306 + ... + 16326.

It is an arithmetic number, because the mean of its divisors is an integer number (5602646).

Almost surely, 2^57564636 is an apocalyptic number.

It is an amenable number.

57564636 is an abundant number, since it is smaller than the sum of its proper divisors (76898868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57564636 is a wasteful number, since it uses less digits than its factorization.

57564636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5221 (or 5219 counting only the distinct ones).

The product of its digits is 453600, while the sum is 42.

The square root of 57564636 is about 7587.1362186269. The cubic root of 57564636 is about 386.1167016280.

The spelling of 57564636 in words is "fifty-seven million, five hundred sixty-four thousand, six hundred thirty-six".