565506560 has 40 divisors (see below), whose sum is σ = 1355896476. Its totient is φ = 226201600.

The previous prime is 565506559. The next prime is 565506577. The reversal of 565506560 is 65605565.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 509675776 + 55830784 = 22576^2 + 7472^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107891 + ... + 113010.

Almost surely, 2^565506560 is an apocalyptic number.

It is an amenable number.

565506560 is an abundant number, since it is smaller than the sum of its proper divisors (790389916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

565506560 is an equidigital number, since it uses as much as digits as its factorization.

565506560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220924 (or 220908 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 565506560 is about 23780.3818304080. The cubic root of 565506560 is about 826.9499318305.

The spelling of 565506560 in words is "five hundred sixty-five million, five hundred six thousand, five hundred sixty".