57057390 has 48 divisors (see below), whose sum is σ = 159763968. Its totient is φ = 14044608.

The previous prime is 57057383. The next prime is 57057419. The reversal of 57057390 is 9375075.

57057390 is a `hidden beast` number, since 570 + 57 + 39 + 0 = 666.

57057390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×57057390² = 6511091507224200, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 23214 + ... + 25553.

It is an arithmetic number, because the mean of its divisors is an integer number (3328416).

Almost surely, 2^57057390 is an apocalyptic number.

57057390 is an abundant number, since it is smaller than the sum of its proper divisors (102706578).

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

57057390 is a wasteful number, since it uses less digits than its factorization.

57057390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48793 (or 48790 counting only the distinct ones).

The product of its (nonzero) digits is 33075, while the sum is 36.

The square root of 57057390 is about 7553.6342246630. The cubic root of 57057390 is about 384.9792309030.

The spelling of 57057390 in words is "fifty-seven million, fifty-seven thousand, three hundred ninety".