565316849 has 2 divisors, whose sum is σ = 565316850. Its totient is φ = 565316848.

The previous prime is 565316803. The next prime is 565316881. The reversal of 565316849 is 948613565.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 510082225 + 55234624 = 22585^2 + 7432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-565316849 is a prime.

It is not a weakly prime, because it can be changed into another prime (565316449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282658424 + 282658425.

It is an arithmetic number, because the mean of its divisors is an integer number (282658425).

Almost surely, 2^565316849 is an apocalyptic number.

It is an amenable number.

565316849 is a deficient number, since it is larger than the sum of its proper divisors (1).

565316849 is an equidigital number, since it uses as much as digits as its factorization.

565316849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 47.

The square root of 565316849 is about 23776.3926826590. The cubic root of 565316849 is about 826.8574489394.

The spelling of 565316849 in words is "five hundred sixty-five million, three hundred sixteen thousand, eight hundred forty-nine".