565945511 has 2 divisors, whose sum is σ = 565945512. Its totient is φ = 565945510.

The previous prime is 565945483. The next prime is 565945519. The reversal of 565945511 is 115549565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 565945511 - 2¹⁴ = 565929127 is a prime.

It is a super-2 number, since 2×565945511² = 640588642842102242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565945519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282972755 + 282972756.

It is an arithmetic number, because the mean of its divisors is an integer number (282972756).

Almost surely, 2^565945511 is an apocalyptic number.

565945511 is a deficient number, since it is larger than the sum of its proper divisors (1).

565945511 is an equidigital number, since it uses as much as digits as its factorization.

565945511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 135000, while the sum is 41.

The square root of 565945511 is about 23789.6093074266. The cubic root of 565945511 is about 827.1638383507.

The spelling of 565945511 in words is "five hundred sixty-five million, nine hundred forty-five thousand, five hundred eleven".