57256712 has 8 divisors (see below), whose sum is σ = 107356350. Its totient is φ = 28628352.

The previous prime is 57256691. The next prime is 57256733. The reversal of 57256712 is 21765275.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57256691) and next prime (57256733).

It can be written as a sum of positive squares in only one way, i.e., 37773316 + 19483396 = 6146^2 + 4414^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3578537 + ... + 3578552.

Almost surely, 2^57256712 is an apocalyptic number.

It is an amenable number.

57256712 is a deficient number, since it is larger than the sum of its proper divisors (50099638).

57256712 is a wasteful number, since it uses less digits than its factorization.

57256712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7157095 (or 7157091 counting only the distinct ones).

The product of its digits is 29400, while the sum is 35.

The square root of 57256712 is about 7566.8165036559. The cubic root of 57256712 is about 385.4270002404.

The spelling of 57256712 in words is "fifty-seven million, two hundred fifty-six thousand, seven hundred twelve".