56513473 has 2 divisors, whose sum is σ = 56513474. Its totient is φ = 56513472.

The previous prime is 56513453. The next prime is 56513477. The reversal of 56513473 is 37431565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43718544 + 12794929 = 6612^2 + 3577^2 .

It is a cyclic number.

It is not a de Polignac number, because 56513473 - 2¹⁷ = 56382401 is a prime.

It is not a weakly prime, because it can be changed into another prime (56513477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28256736 + 28256737.

It is an arithmetic number, because the mean of its divisors is an integer number (28256737).

Almost surely, 2^56513473 is an apocalyptic number.

It is an amenable number.

56513473 is a deficient number, since it is larger than the sum of its proper divisors (1).

56513473 is an equidigital number, since it uses as much as digits as its factorization.

56513473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 34.

The square root of 56513473 is about 7517.5443463940. The cubic root of 56513473 is about 383.7520122831.

The spelling of 56513473 in words is "fifty-six million, five hundred thirteen thousand, four hundred seventy-three".