56517572 has 6 divisors (see below), whose sum is σ = 98905758. Its totient is φ = 28258784.

The previous prime is 56517563. The next prime is 56517577. The reversal of 56517572 is 27571565.

It can be written as a sum of positive squares in only one way, i.e., 46430596 + 10086976 = 6814^2 + 3176^2 .

It is not an unprimeable number, because it can be changed into a prime (56517577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7064693 + ... + 7064700.

It is an arithmetic number, because the mean of its divisors is an integer number (16484293).

Almost surely, 2^56517572 is an apocalyptic number.

It is an amenable number.

56517572 is a deficient number, since it is larger than the sum of its proper divisors (42388186).

56517572 is a wasteful number, since it uses less digits than its factorization.

56517572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14129397 (or 14129395 counting only the distinct ones).

The product of its digits is 73500, while the sum is 38.

The square root of 56517572 is about 7517.8169703711. The cubic root of 56517572 is about 383.7612900794.

The spelling of 56517572 in words is "fifty-six million, five hundred seventeen thousand, five hundred seventy-two".