56569273 has 2 divisors, whose sum is σ = 56569274. Its totient is φ = 56569272.

The previous prime is 56569267. The next prime is 56569291. The reversal of 56569273 is 37296565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56430144 + 139129 = 7512^2 + 373^2 .

It is a cyclic number.

It is not a de Polignac number, because 56569273 - 2⁹ = 56568761 is a prime.

It is not a weakly prime, because it can be changed into another prime (56569223) 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, 28284636 + 28284637.

It is an arithmetic number, because the mean of its divisors is an integer number (28284637).

Almost surely, 2^56569273 is an apocalyptic number.

It is an amenable number.

56569273 is a deficient number, since it is larger than the sum of its proper divisors (1).

56569273 is an equidigital number, since it uses as much as digits as its factorization.

56569273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 43.

The square root of 56569273 is about 7521.2547490429. The cubic root of 56569273 is about 383.8782731394.

The spelling of 56569273 in words is "fifty-six million, five hundred sixty-nine thousand, two hundred seventy-three".