566422213 has 6 divisors (see below), whose sum is σ = 658899366. Its totient is φ = 485504712.

The previous prime is 566422141. The next prime is 566422223. The reversal of 566422213 is 312224665.

It can be written as a sum of positive squares in only one way, i.e., 564442564 + 1979649 = 23758^2 + 1407^2 .

It is a de Polignac number, because none of the positive numbers 2^k-566422213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566422223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5779770 + ... + 5779867.

It is an arithmetic number, because the mean of its divisors is an integer number (109816561).

Almost surely, 2^566422213 is an apocalyptic number.

It is an amenable number.

566422213 is a deficient number, since it is larger than the sum of its proper divisors (92477153).

566422213 is a wasteful number, since it uses less digits than its factorization.

566422213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11559651 (or 11559644 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 566422213 is about 23799.6263205959. The cubic root of 566422213 is about 827.3960161779.

Adding to 566422213 its reverse (312224665), we get a palindrome (878646878).

The spelling of 566422213 in words is "five hundred sixty-six million, four hundred twenty-two thousand, two hundred thirteen".