565550 has 12 divisors (see below), whose sum is σ = 1052016. Its totient is φ = 226200.

The previous prime is 565549. The next prime is 565553. The reversal of 565550 is 55565.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 565550.

It is not an unprimeable number, because it can be changed into a prime (565553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5606 + ... + 5705.

It is an arithmetic number, because the mean of its divisors is an integer number (87668).

2⁵⁶⁵⁵⁵⁰ is an apocalyptic number.

565550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

565550 is a deficient number, since it is larger than the sum of its proper divisors (486466).

565550 is a wasteful number, since it uses less digits than its factorization.

565550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11323 (or 11318 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 565550 is about 752.0305844844. The cubic root of 565550 is about 82.6971105640.

The spelling of 565550 in words is "five hundred sixty-five thousand, five hundred fifty".