57540156 has 12 divisors (see below), whose sum is σ = 134260392. Its totient is φ = 19180048.

The previous prime is 57540127. The next prime is 57540167. The reversal of 57540156 is 65104575.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2397495 + ... + 2397518.

It is an arithmetic number, because the mean of its divisors is an integer number (11188366).

Almost surely, 2^57540156 is an apocalyptic number.

It is an amenable number.

57540156 is an abundant number, since it is smaller than the sum of its proper divisors (76720236).

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

57540156 is a wasteful number, since it uses less digits than its factorization.

57540156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795020 (or 4795018 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 57540156 is about 7585.5227901576. The cubic root of 57540156 is about 386.0619603974.

The spelling of 57540156 in words is "fifty-seven million, five hundred forty thousand, one hundred fifty-six".