56610569 has 2 divisors, whose sum is σ = 56610570. Its totient is φ = 56610568.

The previous prime is 56610563. The next prime is 56610571. The reversal of 56610569 is 96501665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34633225 + 21977344 = 5885^2 + 4688^2 .

It is a cyclic number.

It is not a de Polignac number, because 56610569 - 2⁴ = 56610553 is a prime.

It is a super-2 number, since 2×56610569² = 6409513045007522, which contains 22 as substring.

Together with 56610571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56610563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28305284 + 28305285.

It is an arithmetic number, because the mean of its divisors is an integer number (28305285).

Almost surely, 2^56610569 is an apocalyptic number.

It is an amenable number.

56610569 is a deficient number, since it is larger than the sum of its proper divisors (1).

56610569 is an equidigital number, since it uses as much as digits as its factorization.

56610569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 56610569 is about 7523.9995348219. Note that the first 3 decimals coincide. The cubic root of 56610569 is about 383.9716617723.

The spelling of 56610569 in words is "fifty-six million, six hundred ten thousand, five hundred sixty-nine".