565456 has 20 divisors (see below), whose sum is σ = 1116000. Its totient is φ = 277472.

The previous prime is 565451. The next prime is 565463. The reversal of 565456 is 654565.

565456 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565451) 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, 645 + ... + 1243.

It is an arithmetic number, because the mean of its divisors is an integer number (55800).

2⁵⁶⁵⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

565456 is a deficient number, since it is larger than the sum of its proper divisors (550544).

565456 is a wasteful number, since it uses less digits than its factorization.

565456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 660 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 565456 is about 751.9680844291. The cubic root of 565456 is about 82.6925286178.

The spelling of 565456 in words is "five hundred sixty-five thousand, four hundred fifty-six".