57047664 has 40 divisors (see below), whose sum is σ = 147704832. Its totient is φ = 18973120.

The previous prime is 57047651. The next prime is 57047743. The reversal of 57047664 is 46674075.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25969 + ... + 28079.

Almost surely, 2^57047664 is an apocalyptic number.

It is an amenable number.

57047664 is an abundant number, since it is smaller than the sum of its proper divisors (90657168).

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

57047664 is a wasteful number, since it uses less digits than its factorization.

57047664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685 (or 2679 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 57047664 is about 7552.9904011590. The cubic root of 57047664 is about 384.9573551461.

The spelling of 57047664 in words is "fifty-seven million, forty-seven thousand, six hundred sixty-four".