57909136 has 20 divisors (see below), whose sum is σ = 112918492. Its totient is φ = 28768896.

The previous prime is 57909119. The next prime is 57909139. The reversal of 57909136 is 63190975.

It can be written as a sum of positive squares in 2 ways, for example, as 30869136 + 27040000 = 5556^2 + 5200^2 .

It is not an unprimeable number, because it can be changed into a prime (57909139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9015 + ... + 14038.

Almost surely, 2^57909136 is an apocalyptic number.

It is an amenable number.

57909136 is a deficient number, since it is larger than the sum of its proper divisors (55009356).

57909136 is a wasteful number, since it uses less digits than its factorization.

57909136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23218 (or 23212 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 57909136 is about 7609.8052537499. The cubic root of 57909136 is about 386.8854185642.

The spelling of 57909136 in words is "fifty-seven million, nine hundred nine thousand, one hundred thirty-six".