565056565 has 4 divisors (see below), whose sum is σ = 678067884. Its totient is φ = 452045248.

The previous prime is 565056529. The next prime is 565056577. The reversal of 565056565 is 565650565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 565650565 = 5 ⋅113130113.

It can be written as a sum of positive squares in 2 ways, for example, as 210337009 + 354719556 = 14503^2 + 18834^2 .

It is a cyclic number.

It is not a de Polignac number, because 565056565 - 2⁹ = 565056053 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56505652 + ... + 56505661.

It is an arithmetic number, because the mean of its divisors is an integer number (169516971).

Almost surely, 2^565056565 is an apocalyptic number.

It is an amenable number.

565056565 is a deficient number, since it is larger than the sum of its proper divisors (113011319).

565056565 is a wasteful number, since it uses less digits than its factorization.

565056565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113011318.

The product of its (nonzero) digits is 675000, while the sum is 43.

The square root of 565056565 is about 23770.9184719480. The cubic root of 565056565 is about 826.7305284915.

The spelling of 565056565 in words is "five hundred sixty-five million, fifty-six thousand, five hundred sixty-five".