57705064 has 8 divisors (see below), whose sum is σ = 108197010. Its totient is φ = 28852528.

The previous prime is 57705061. The next prime is 57705077. The reversal of 57705064 is 46050775.

It can be written as a sum of positive squares in only one way, i.e., 37724164 + 19980900 = 6142^2 + 4470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×57705064² = 6659748822488192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57705061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3606559 + ... + 3606574.

Almost surely, 2^57705064 is an apocalyptic number.

It is an amenable number.

57705064 is a deficient number, since it is larger than the sum of its proper divisors (50491946).

57705064 is a wasteful number, since it uses less digits than its factorization.

57705064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7213139 (or 7213135 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 57705064 is about 7596.3849296886. The cubic root of 57705064 is about 386.4304218140.

The spelling of 57705064 in words is "fifty-seven million, seven hundred five thousand, sixty-four".