56568539 has 2 divisors, whose sum is σ = 56568540. Its totient is φ = 56568538.

The previous prime is 56568517. The next prime is 56568559. The reversal of 56568539 is 93586565.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56568539 - 2⁸ = 56568283 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56568493 and 56568502.

It is not a weakly prime, because it can be changed into another prime (56568509) 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, 28284269 + 28284270.

It is an arithmetic number, because the mean of its divisors is an integer number (28284270).

Almost surely, 2^56568539 is an apocalyptic number.

56568539 is a deficient number, since it is larger than the sum of its proper divisors (1).

56568539 is an equidigital number, since it uses as much as digits as its factorization.

56568539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972000, while the sum is 47.

The square root of 56568539 is about 7521.2059538348. The cubic root of 56568539 is about 383.8766128277.

The spelling of 56568539 in words is "fifty-six million, five hundred sixty-eight thousand, five hundred thirty-nine".