565980 has 24 divisors (see below), whose sum is σ = 1584912. Its totient is φ = 150912.

The previous prime is 565979. The next prime is 565997. The reversal of 565980 is 89565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4657 + ... + 4776.

It is an arithmetic number, because the mean of its divisors is an integer number (66038).

2⁵⁶⁵⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

565980 is an abundant number, since it is smaller than the sum of its proper divisors (1018932).

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

565980 is a wasteful number, since it uses less digits than its factorization.

565980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9445 (or 9443 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 565980 is about 752.3164227903. The cubic root of 565980 is about 82.7180640601.

The spelling of 565980 in words is "five hundred sixty-five thousand, nine hundred eighty".