57808656 has 60 divisors (see below), whose sum is σ = 162878092. Its totient is φ = 19139328.

The previous prime is 57808649. The next prime is 57808661. The reversal of 57808656 is 65680875.

It can be written as a sum of positive squares in 2 ways, for example, as 20793600 + 37015056 = 4560^2 + 6084^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 21330 + ... + 23886.

Almost surely, 2^57808656 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 57808656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81439046).

57808656 is an abundant number, since it is smaller than the sum of its proper divisors (105069436).

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

57808656 is a wasteful number, since it uses less digits than its factorization.

57808656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728 (or 2719 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 57808656 is about 7603.2003787879. The cubic root of 57808656 is about 386.6615232504.

The spelling of 57808656 in words is "fifty-seven million, eight hundred eight thousand, six hundred fifty-six".