566320231 has 4 divisors (see below), whose sum is σ = 571927464. Its totient is φ = 560713000.

The previous prime is 566320189. The next prime is 566320253. The reversal of 566320231 is 132023665.

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

It is a cyclic number.

It is not a de Polignac number, because 566320231 - 2¹⁷ = 566189159 is a prime.

It is a super-2 number, since 2×566320231² = 641437208079786722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 566320231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563320231) 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, 2803465 + ... + 2803666.

It is an arithmetic number, because the mean of its divisors is an integer number (142981866).

Almost surely, 2^566320231 is an apocalyptic number.

566320231 is a deficient number, since it is larger than the sum of its proper divisors (5607233).

566320231 is a wasteful number, since it uses less digits than its factorization.

566320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607232.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 566320231 is about 23797.4837115187. The cubic root of 566320231 is about 827.3463567759.

Adding to 566320231 its reverse (132023665), we get a palindrome (698343896).

The spelling of 566320231 in words is "five hundred sixty-six million, three hundred twenty thousand, two hundred thirty-one".