57353640 has 32 divisors (see below), whose sum is σ = 172061280. Its totient is φ = 15294272.

The previous prime is 57353623. The next prime is 57353657. The reversal of 57353640 is 4635375.

57353640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57353623) and next prime (57353657).

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, 238854 + ... + 239093.

It is an arithmetic number, because the mean of its divisors is an integer number (5376915).

Almost surely, 2^57353640 is an apocalyptic number.

It is an amenable number.

57353640 is an abundant number, since it is smaller than the sum of its proper divisors (114707640).

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

57353640 is a wasteful number, since it uses less digits than its factorization.

57353640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477961 (or 477957 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 57353640 is about 7573.2186024173. The cubic root of 57353640 is about 385.6443698477.

The spelling of 57353640 in words is "fifty-seven million, three hundred fifty-three thousand, six hundred forty".