565273236641 has 2 divisors, whose sum is σ = 565273236642. Its totient is φ = 565273236640.

The previous prime is 565273236571. The next prime is 565273236659. The reversal of 565273236641 is 146632372565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 551655280225 + 13617956416 = 742735^2 + 116696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-565273236641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 565273236641.

It is not a weakly prime, because it can be changed into another prime (565273236041) 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, 282636618320 + 282636618321.

It is an arithmetic number, because the mean of its divisors is an integer number (282636618321).

Almost surely, 2^565273236641 is an apocalyptic number.

It is an amenable number.

565273236641 is a deficient number, since it is larger than the sum of its proper divisors (1).

565273236641 is an equidigital number, since it uses as much as digits as its factorization.

565273236641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 50.

The spelling of 565273236641 in words is "five hundred sixty-five billion, two hundred seventy-three million, two hundred thirty-six thousand, six hundred forty-one".