565993013 has 2 divisors, whose sum is σ = 565993014. Its totient is φ = 565993012.

The previous prime is 565992997. The next prime is 565993027. The reversal of 565993013 is 310399565.

565993013 = 16822² + 16823².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283013329 + 282979684 = 16823^2 + 16822^2 .

It is a cyclic number.

It is not a de Polignac number, because 565993013 - 2⁴ = 565992997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565993613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282996506 + 282996507.

It is an arithmetic number, because the mean of its divisors is an integer number (282996507).

Almost surely, 2^565993013 is an apocalyptic number.

565993013 is the 16823-rd centered square number.

It is an amenable number.

565993013 is a deficient number, since it is larger than the sum of its proper divisors (1).

565993013 is an equidigital number, since it uses as much as digits as its factorization.

565993013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 109350, while the sum is 41.

The square root of 565993013 is about 23790.6076635297. The cubic root of 565993013 is about 827.1869800588.

The spelling of 565993013 in words is "five hundred sixty-five million, nine hundred ninety-three thousand, thirteen".