57656704 has 64 divisors (see below), whose sum is σ = 132314400. Its totient is φ = 24514560.

The previous prime is 57656689. The next prime is 57656717. The reversal of 57656704 is 40765675.

It is a happy number.

57656704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×57656704² = 6648591032287232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205044 + ... + 205324.

Almost surely, 2^57656704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57656704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66157200).

57656704 is an abundant number, since it is smaller than the sum of its proper divisors (74657696).

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

57656704 is a wasteful number, since it uses less digits than its factorization.

57656704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 57656704 is about 7593.2011694673. The cubic root of 57656704 is about 386.3224417004.

The spelling of 57656704 in words is "fifty-seven million, six hundred fifty-six thousand, seven hundred four".