57165040 has 20 divisors (see below), whose sum is σ = 132908904. Its totient is φ = 22865984.

The previous prime is 57165013. The next prime is 57165077. The reversal of 57165040 is 4056175.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357202 + ... + 357361.

Almost surely, 2^57165040 is an apocalyptic number.

It is an amenable number.

57165040 is an abundant number, since it is smaller than the sum of its proper divisors (75743864).

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

57165040 is a wasteful number, since it uses less digits than its factorization.

57165040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714576 (or 714570 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 57165040 is about 7560.7565758990. The cubic root of 57165040 is about 385.2211918364.

The spelling of 57165040 in words is "fifty-seven million, one hundred sixty-five thousand, forty".