56565473 has 2 divisors, whose sum is σ = 56565474. Its totient is φ = 56565472.

The previous prime is 56565433. The next prime is 56565479. The reversal of 56565473 is 37456565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45589504 + 10975969 = 6752^2 + 3313^2 .

It is a cyclic number.

It is not a de Polignac number, because 56565473 - 2⁸ = 56565217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56565473.

It is not a weakly prime, because it can be changed into another prime (56565479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28282736 + 28282737.

It is an arithmetic number, because the mean of its divisors is an integer number (28282737).

Almost surely, 2^56565473 is an apocalyptic number.

It is an amenable number.

56565473 is a deficient number, since it is larger than the sum of its proper divisors (1).

56565473 is an equidigital number, since it uses as much as digits as its factorization.

56565473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 41.

The square root of 56565473 is about 7521.0021273764. The cubic root of 56565473 is about 383.8696773651.

The spelling of 56565473 in words is "fifty-six million, five hundred sixty-five thousand, four hundred seventy-three".