57785664 has 28 divisors (see below), whose sum is σ = 152891744. Its totient is φ = 19261824.

The previous prime is 57785657. The next prime is 57785677. The reversal of 57785664 is 46658775.

57785664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 3 ways as a sum of consecutive naturals, for example, 150292 + ... + 150675.

Almost surely, 2^57785664 is an apocalyptic number.

It is an amenable number.

57785664 is an abundant number, since it is smaller than the sum of its proper divisors (95106080).

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

57785664 is a wasteful number, since it uses less digits than its factorization.

57785664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300982 (or 300972 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 48.

The square root of 57785664 is about 7601.6882335439. The cubic root of 57785664 is about 386.6102546848.

The spelling of 57785664 in words is "fifty-seven million, seven hundred eighty-five thousand, six hundred sixty-four".