57311712 has 60 divisors (see below), whose sum is σ = 168559776. Its totient is φ = 19103040.

The previous prime is 57311687. The next prime is 57311717. The reversal of 57311712 is 21711375.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57311717) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 8464 + ... + 13647.

Almost surely, 2^57311712 is an apocalyptic number.

It is an amenable number.

57311712 is an abundant number, since it is smaller than the sum of its proper divisors (111248064).

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

57311712 is a wasteful number, since it uses less digits than its factorization.

57311712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22133 (or 22116 counting only the distinct ones).

The product of its digits is 1470, while the sum is 27.

The square root of 57311712 is about 7570.4499205794. The cubic root of 57311712 is about 385.5503726815.

The spelling of 57311712 in words is "fifty-seven million, three hundred eleven thousand, seven hundred twelve".