57385556 has 12 divisors (see below), whose sum is σ = 100680468. Its totient is φ = 28619712.

The previous prime is 57385553. The next prime is 57385571. The reversal of 57385556 is 65558375.

57385556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36409156 + 20976400 = 6034^2 + 4580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57385553) by changing a digit.

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, 16481 + ... + 19656.

It is an arithmetic number, because the mean of its divisors is an integer number (8390039).

Almost surely, 2^57385556 is an apocalyptic number.

It is an amenable number.

57385556 is a deficient number, since it is larger than the sum of its proper divisors (43294912).

57385556 is a wasteful number, since it uses less digits than its factorization.

57385556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36538 (or 36536 counting only the distinct ones).

The product of its digits is 630000, while the sum is 44.

The square root of 57385556 is about 7575.3254715557. The cubic root of 57385556 is about 385.7158906981.

The spelling of 57385556 in words is "fifty-seven million, three hundred eighty-five thousand, five hundred fifty-six".