565305442217 has 4 divisors (see below), whose sum is σ = 566070402960. Its totient is φ = 564540481476.

The previous prime is 565305442183. The next prime is 565305442241. The reversal of 565305442217 is 712244503565.

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 a cyclic number.

It is not a de Polignac number, because 565305442217 - 2³⁴ = 548125573033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (565305442517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382479263 + ... + 382480740.

It is an arithmetic number, because the mean of its divisors is an integer number (141517600740).

Almost surely, 2^565305442217 is an apocalyptic number.

It is an amenable number.

565305442217 is a deficient number, since it is larger than the sum of its proper divisors (764960743).

565305442217 is an equidigital number, since it uses as much as digits as its factorization.

565305442217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764960742.

The product of its (nonzero) digits is 1008000, while the sum is 44.

The spelling of 565305442217 in words is "five hundred sixty-five billion, three hundred five million, four hundred forty-two thousand, two hundred seventeen".