565656799 has 2 divisors, whose sum is σ = 565656800. Its totient is φ = 565656798.

The previous prime is 565656737. The next prime is 565656811. The reversal of 565656799 is 997656565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 565656799 - 2²³ = 557268191 is a prime.

It is a super-2 number, since 2×565656799² = 639935228509852802, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565656199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282828399 + 282828400.

It is an arithmetic number, because the mean of its divisors is an integer number (282828400).

Almost surely, 2^565656799 is an apocalyptic number.

565656799 is a deficient number, since it is larger than the sum of its proper divisors (1).

565656799 is an equidigital number, since it uses as much as digits as its factorization.

565656799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15309000, while the sum is 58.

The square root of 565656799 is about 23783.5405059886. The cubic root of 565656799 is about 827.0231577008.

The spelling of 565656799 in words is "five hundred sixty-five million, six hundred fifty-six thousand, seven hundred ninety-nine".