57664812 has 12 divisors (see below), whose sum is σ = 134551256. Its totient is φ = 19221600.

The previous prime is 57664787. The next prime is 57664813. The reversal of 57664812 is 21846675.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (57664813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2402689 + ... + 2402712.

Almost surely, 2^57664812 is an apocalyptic number.

It is an amenable number.

57664812 is an abundant number, since it is smaller than the sum of its proper divisors (76886444).

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

57664812 is a wasteful number, since it uses less digits than its factorization.

57664812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805408 (or 4805406 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 57664812 is about 7593.7350493680. The cubic root of 57664812 is about 386.3405497741.

The spelling of 57664812 in words is "fifty-seven million, six hundred sixty-four thousand, eight hundred twelve".