566320 has 20 divisors (see below), whose sum is σ = 1316880. Its totient is φ = 226496.

The previous prime is 566311. The next prime is 566323. The reversal of 566320 is 23665.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 566291 and 566300.

It is not an unprimeable number, because it can be changed into a prime (566323) by changing a digit.

566320 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 3 ways as a sum of consecutive naturals, for example, 3460 + ... + 3619.

It is an arithmetic number, because the mean of its divisors is an integer number (65844).

2⁵⁶⁶³²⁰ is an apocalyptic number.

It is an amenable number.

566320 is an abundant number, since it is smaller than the sum of its proper divisors (750560).

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

566320 is a wasteful number, since it uses less digits than its factorization.

566320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7092 (or 7086 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 566320 is about 752.5423576118. The cubic root of 566320 is about 82.7346244285.

Adding to 566320 its reverse (23665), we get a palindrome (589985).

The spelling of 566320 in words is "five hundred sixty-six thousand, three hundred twenty".