566220 has 24 divisors (see below), whose sum is σ = 1585584. Its totient is φ = 150976.

The previous prime is 566213. The next prime is 566227. The reversal of 566220 is 22665.

It is an interprime number because it is at equal distance from previous prime (566213) and next prime (566227).

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 566220.

It is not an unprimeable number, because it can be changed into a prime (566227) by changing a digit.

566220 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4659 + ... + 4778.

It is an arithmetic number, because the mean of its divisors is an integer number (66066).

2⁵⁶⁶²²⁰ is an apocalyptic number.

It is an amenable number.

566220 is an abundant number, since it is smaller than the sum of its proper divisors (1019364).

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

566220 is a wasteful number, since it uses less digits than its factorization.

566220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9449 (or 9447 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 566220 is about 752.4759132358. The cubic root of 566220 is about 82.7297544201.

Adding to 566220 its reverse (22665), we get a palindrome (588885).

The spelling of 566220 in words is "five hundred sixty-six thousand, two hundred twenty".