56475473 has 2 divisors, whose sum is σ = 56475474. Its totient is φ = 56475472.

The previous prime is 56475421. The next prime is 56475487. The reversal of 56475473 is 37457465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55606849 + 868624 = 7457^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 56475473 - 2¹² = 56471377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56475473.

It is not a weakly prime, because it can be changed into another prime (56475403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28237736 + 28237737.

It is an arithmetic number, because the mean of its divisors is an integer number (28237737).

Almost surely, 2^56475473 is an apocalyptic number.

It is an amenable number.

56475473 is a deficient number, since it is larger than the sum of its proper divisors (1).

56475473 is an equidigital number, since it uses as much as digits as its factorization.

56475473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 41.

The square root of 56475473 is about 7515.0165003146. The cubic root of 56475473 is about 383.6659806085.

The spelling of 56475473 in words is "fifty-six million, four hundred seventy-five thousand, four hundred seventy-three".