57122312 has 32 divisors (see below), whose sum is σ = 122131800. Its totient is φ = 24812544.

The previous prime is 57122297. The next prime is 57122321. The reversal of 57122312 is 21322175.

It is a happy number.

57122312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 55145476 + 1976836 = 7426^2 + 1406^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14387 + ... + 17922.

Almost surely, 2^57122312 is an apocalyptic number.

57122312 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

57122312 is an abundant number, since it is smaller than the sum of its proper divisors (65009488).

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

57122312 is a wasteful number, since it uses less digits than its factorization.

57122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32345 (or 32341 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 57122312 is about 7557.9304045486. The cubic root of 57122312 is about 385.1251900742.

Adding to 57122312 its reverse (21322175), we get a palindrome (78444487).

The spelling of 57122312 in words is "fifty-seven million, one hundred twenty-two thousand, three hundred twelve".