565116517 has 4 divisors (see below), whose sum is σ = 645847456. Its totient is φ = 484385580.

The previous prime is 565116493. The next prime is 565116521. The reversal of 565116517 is 715611565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 565116517 - 2¹⁵ = 565083749 is a prime.

It is a super-2 number, since 2×565116517² = 638713355572422578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565116557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40365459 + ... + 40365472.

It is an arithmetic number, because the mean of its divisors is an integer number (161461864).

Almost surely, 2^565116517 is an apocalyptic number.

It is an amenable number.

565116517 is a deficient number, since it is larger than the sum of its proper divisors (80730939).

565116517 is an equidigital number, since it uses as much as digits as its factorization.

565116517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80730938.

The product of its digits is 31500, while the sum is 37.

The square root of 565116517 is about 23772.1794751764. The cubic root of 565116517 is about 826.7597659159.

The spelling of 565116517 in words is "five hundred sixty-five million, one hundred sixteen thousand, five hundred seventeen".