566855 has 4 divisors (see below), whose sum is σ = 680232. Its totient is φ = 453480.

The previous prime is 566851. The next prime is 566857. The reversal of 566855 is 558665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 558665 = 5 ⋅111733.

It is not a de Polignac number, because 566855 - 2² = 566851 is a prime.

It is a super-3 number, since 3×566855³ = 546433353136429125, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566851) 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, 56681 + ... + 56690.

It is an arithmetic number, because the mean of its divisors is an integer number (170058).

2⁵⁶⁶⁸⁵⁵ is an apocalyptic number.

566855 is a deficient number, since it is larger than the sum of its proper divisors (113377).

566855 is a wasteful number, since it uses less digits than its factorization.

566855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113376.

The product of its digits is 36000, while the sum is 35.

The square root of 566855 is about 752.8977354196. The cubic root of 566855 is about 82.7606692401.

The spelling of 566855 in words is "five hundred sixty-six thousand, eight hundred fifty-five".