57776920 has 32 divisors (see below), whose sum is σ = 135652320. Its totient is φ = 22105600.

The previous prime is 57776909. The next prime is 57776951. The reversal of 57776920 is 2967775.

It is a happy number.

57776920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 30481 + ... + 32320.

It is an arithmetic number, because the mean of its divisors is an integer number (4239135).

Almost surely, 2^57776920 is an apocalyptic number.

It is an amenable number.

57776920 is an abundant number, since it is smaller than the sum of its proper divisors (77875400).

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

57776920 is a wasteful number, since it uses less digits than its factorization.

57776920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62835 (or 62831 counting only the distinct ones).

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 57776920 is about 7601.1130763856. The cubic root of 57776920 is about 386.5907533624.

The spelling of 57776920 in words is "fifty-seven million, seven hundred seventy-six thousand, nine hundred twenty".