565805069 has 2 divisors, whose sum is σ = 565805070. Its totient is φ = 565805068.

The previous prime is 565805041. The next prime is 565805077. The reversal of 565805069 is 960508565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 454755625 + 111049444 = 21325^2 + 10538^2 .

It is a cyclic number.

It is not a de Polignac number, because 565805069 - 2²⁸ = 297369613 is a prime.

It is a super-2 number, since 2×565805069² = 640270752212189522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565805029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282902534 + 282902535.

It is an arithmetic number, because the mean of its divisors is an integer number (282902535).

Almost surely, 2^565805069 is an apocalyptic number.

It is an amenable number.

565805069 is a deficient number, since it is larger than the sum of its proper divisors (1).

565805069 is an equidigital number, since it uses as much as digits as its factorization.

565805069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 44.

The square root of 565805069 is about 23786.6573734100. The cubic root of 565805069 is about 827.0954111776.

The spelling of 565805069 in words is "five hundred sixty-five million, eight hundred five thousand, sixty-nine".