57755530 has 64 divisors (see below), whose sum is σ = 128355840. Its totient is φ = 18273024.

The previous prime is 57755521. The next prime is 57755549. The reversal of 57755530 is 3555775.

57755530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 57755530.

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 31 ways as a sum of consecutive naturals, for example, 46072 + ... + 47308.

It is an arithmetic number, because the mean of its divisors is an integer number (2005560).

Almost surely, 2^57755530 is an apocalyptic number.

57755530 is an abundant number, since it is smaller than the sum of its proper divisors (70600310).

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

57755530 is a wasteful number, since it uses less digits than its factorization.

57755530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303.

The product of its (nonzero) digits is 91875, while the sum is 37.

The square root of 57755530 is about 7599.7059153628. The cubic root of 57755530 is about 386.5430399797.

It can be divided in two parts, 57755 and 530, that added together give a palindrome (58285).

The spelling of 57755530 in words is "fifty-seven million, seven hundred fifty-five thousand, five hundred thirty".