57131712 has 168 divisors, whose sum is σ = 182587392. Its totient is φ = 16934400.

The previous prime is 57131707. The next prime is 57131717. The reversal of 57131712 is 21713175.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57131707) and next prime (57131717).

It is not an unprimeable number, because it can be changed into a prime (57131717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 449793 + ... + 449919.

Almost surely, 2^57131712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57131712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91293696).

57131712 is an abundant number, since it is smaller than the sum of its proper divisors (125455680).

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

57131712 is a wasteful number, since it uses less digits than its factorization.

57131712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 214 counting only the distinct ones).

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

The square root of 57131712 is about 7558.5522423279. The cubic root of 57131712 is about 385.1463142088.

Adding to 57131712 its reverse (21713175), we get a palindrome (78844887).

It can be divided in two parts, 57 and 131712, that added together give a square (131769 = 363²).

The spelling of 57131712 in words is "fifty-seven million, one hundred thirty-one thousand, seven hundred twelve".