565305577055 has 4 divisors (see below), whose sum is σ = 678366692472. Its totient is φ = 452244461640.

The previous prime is 565305577037. The next prime is 565305577079. The reversal of 565305577055 is 550775503565.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 565305577055 - 2⁶ = 565305576991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 565305576988 and 565305577006.

It is a congruent number.

It is an unprimeable number.

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, 56530557701 + ... + 56530557710.

It is an arithmetic number, because the mean of its divisors is an integer number (169591673118).

Almost surely, 2^565305577055 is an apocalyptic number.

565305577055 is a deficient number, since it is larger than the sum of its proper divisors (113061115417).

565305577055 is a wasteful number, since it uses less digits than its factorization.

565305577055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113061115416.

The product of its (nonzero) digits is 13781250, while the sum is 53.

The spelling of 565305577055 in words is "five hundred sixty-five billion, three hundred five million, five hundred seventy-seven thousand, fifty-five".