566520220 has 48 divisors (see below), whose sum is σ = 1406543040. Its totient is φ = 187536384.

The previous prime is 566520217. The next prime is 566520221. The reversal of 566520220 is 22025665.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566520221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65709 + ... + 73828.

It is an arithmetic number, because the mean of its divisors is an integer number (29302980).

Almost surely, 2^566520220 is an apocalyptic number.

It is an amenable number.

566520220 is an abundant number, since it is smaller than the sum of its proper divisors (840022820).

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

566520220 is a wasteful number, since it uses less digits than its factorization.

566520220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139582 (or 139580 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 566520220 is about 23801.6852344535. The cubic root of 566520220 is about 827.4437343658.

Adding to 566520220 its reverse (22025665), we get a palindrome (588545885).

The spelling of 566520220 in words is "five hundred sixty-six million, five hundred twenty thousand, two hundred twenty".