566959 has 4 divisors (see below), whose sum is σ = 585280. Its totient is φ = 548640.

The previous prime is 566947. The next prime is 566963. The reversal of 566959 is 959665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566939) by changing a digit.

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, 9114 + ... + 9175.

It is an arithmetic number, because the mean of its divisors is an integer number (146320).

2⁵⁶⁶⁹⁵⁹ is an apocalyptic number.

566959 is a deficient number, since it is larger than the sum of its proper divisors (18321).

566959 is a wasteful number, since it uses less digits than its factorization.

566959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18320.

The product of its digits is 72900, while the sum is 40.

The square root of 566959 is about 752.9667987368. The cubic root of 566959 is about 82.7657302541.

The spelling of 566959 in words is "five hundred sixty-six thousand, nine hundred fifty-nine".