57061664 has 36 divisors (see below), whose sum is σ = 123489702. Its totient is φ = 25935360.

The previous prime is 57061663. The next prime is 57061679. The reversal of 57061664 is 46616075.

It can be written as a sum of positive squares in only one way, i.e., 39589264 + 17472400 = 6292^2 + 4180^2 .

It is not an unprimeable number, because it can be changed into a prime (57061663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3497 + ... + 11240.

Almost surely, 2^57061664 is an apocalyptic number.

It is an amenable number.

57061664 is an abundant number, since it is smaller than the sum of its proper divisors (66428038).

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

57061664 is a wasteful number, since it uses less digits than its factorization.

57061664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14769 (or 14750 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 57061664 is about 7553.9171295428. The cubic root of 57061664 is about 384.9888432141.

The spelling of 57061664 in words is "fifty-seven million, sixty-one thousand, six hundred sixty-four".