565331645 has 4 divisors (see below), whose sum is σ = 678397980. Its totient is φ = 452265312.

The previous prime is 565331633. The next prime is 565331653. The reversal of 565331645 is 546133565.

565331645 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 359064601 + 206267044 = 18949^2 + 14362^2 .

It is a cyclic number.

It is not a de Polignac number, because 565331645 - 2⁴ = 565331629 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 565331599 and 565331608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56533160 + ... + 56533169.

It is an arithmetic number, because the mean of its divisors is an integer number (169599495).

Almost surely, 2^565331645 is an apocalyptic number.

It is an amenable number.

565331645 is a deficient number, since it is larger than the sum of its proper divisors (113066335).

565331645 is a wasteful number, since it uses less digits than its factorization.

565331645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113066334.

The product of its digits is 162000, while the sum is 38.

The square root of 565331645 is about 23776.7038295892. The cubic root of 565331645 is about 826.8646626380.

The spelling of 565331645 in words is "five hundred sixty-five million, three hundred thirty-one thousand, six hundred forty-five".