56523172 has 6 divisors (see below), whose sum is σ = 98915558. Its totient is φ = 28261584.

The previous prime is 56523169. The next prime is 56523179. The reversal of 56523172 is 27132565.

It can be written as a sum of positive squares in only one way, i.e., 51926436 + 4596736 = 7206^2 + 2144^2 .

It is not an unprimeable number, because it can be changed into a prime (56523179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7065393 + ... + 7065400.

Almost surely, 2^56523172 is an apocalyptic number.

It is an amenable number.

56523172 is a deficient number, since it is larger than the sum of its proper divisors (42392386).

56523172 is a wasteful number, since it uses less digits than its factorization.

56523172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14130797 (or 14130795 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 56523172 is about 7518.1894096917. The cubic root of 56523172 is about 383.7739645579.

The spelling of 56523172 in words is "fifty-six million, five hundred twenty-three thousand, one hundred seventy-two".