565020565 has 4 divisors (see below), whose sum is σ = 678024684. Its totient is φ = 452016448.

The previous prime is 565020557. The next prime is 565020569.

It is a happy number.

565020565 is nontrivially palindromic in base 10.

565020565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 442387089 + 122633476 = 21033^2 + 11074^2 .

It is a cyclic number.

It is not a de Polignac number, because 565020565 - 2³ = 565020557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 565020565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565020569) 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, 56502052 + ... + 56502061.

It is an arithmetic number, because the mean of its divisors is an integer number (169506171).

Almost surely, 2^565020565 is an apocalyptic number.

It is an amenable number.

565020565 is a deficient number, since it is larger than the sum of its proper divisors (113004119).

565020565 is a wasteful number, since it uses less digits than its factorization.

565020565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113004118.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 565020565 is about 23770.1612320994. The cubic root of 565020565 is about 826.7129709979.

The spelling of 565020565 in words is "five hundred sixty-five million, twenty thousand, five hundred sixty-five".