57212968 has 8 divisors (see below), whose sum is σ = 107274330. Its totient is φ = 28606480.

The previous prime is 57212963. The next prime is 57212977. The reversal of 57212968 is 86921275.

It can be written as a sum of positive squares in only one way, i.e., 44382244 + 12830724 = 6662^2 + 3582^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 57212968.

It is not an unprimeable number, because it can be changed into a prime (57212963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3575803 + ... + 3575818.

Almost surely, 2^57212968 is an apocalyptic number.

It is an amenable number.

57212968 is a deficient number, since it is larger than the sum of its proper divisors (50061362).

57212968 is a wasteful number, since it uses less digits than its factorization.

57212968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7151627 (or 7151623 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 57212968 is about 7563.9254359096. The cubic root of 57212968 is about 385.3288201108.

The spelling of 57212968 in words is "fifty-seven million, two hundred twelve thousand, nine hundred sixty-eight".