565888 has 16 divisors (see below), whose sum is σ = 1127610. Its totient is φ = 282880.

The previous prime is 565867. The next prime is 565889. The reversal of 565888 is 888565.

It can be written as a sum of positive squares in only one way, i.e., 399424 + 166464 = 632^2 + 408^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 565888.

It is not an unprimeable number, because it can be changed into a prime (565889) by changing a digit.

565888 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2083 + ... + 2338.

2⁵⁶⁵⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

565888 is a deficient number, since it is larger than the sum of its proper divisors (561722).

565888 is an equidigital number, since it uses as much as digits as its factorization.

565888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435 (or 4423 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The square root of 565888 is about 752.2552758206. The cubic root of 565888 is about 82.7135818792.

The spelling of 565888 in words is "five hundred sixty-five thousand, eight hundred eighty-eight".