57064660 has 12 divisors (see below), whose sum is σ = 119835828. Its totient is φ = 22825856.

The previous prime is 57064649. The next prime is 57064669. The reversal of 57064660 is 6646075.

It can be written as a sum of positive squares in 2 ways, for example, as 35664784 + 21399876 = 5972^2 + 4626^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57064669) 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, 1426597 + ... + 1426636.

It is an arithmetic number, because the mean of its divisors is an integer number (9986319).

Almost surely, 2^57064660 is an apocalyptic number.

It is an amenable number.

57064660 is an abundant number, since it is smaller than the sum of its proper divisors (62771168).

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

57064660 is a wasteful number, since it uses less digits than its factorization.

57064660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853242 (or 2853240 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 57064660 is about 7554.1154346489. The cubic root of 57064660 is about 384.9955809916.

The spelling of 57064660 in words is "fifty-seven million, sixty-four thousand, six hundred sixty".