220565056 has 28 divisors (see below), whose sum is σ = 438637680. Its totient is φ = 110042240.

The previous prime is 220565041. The next prime is 220565057. The reversal of 220565056 is 650565022.

It is not an unprimeable number, because it can be changed into a prime (220565057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27915 + ... + 34933.

Almost surely, 2^220565056 is an apocalyptic number.

It is an amenable number.

220565056 is a deficient number, since it is larger than the sum of its proper divisors (218072624).

220565056 is an equidigital number, since it uses as much as digits as its factorization.

220565056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7522 (or 7512 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 220565056 is about 14851.4327928318. The cubic root of 220565056 is about 604.1974706281.

The spelling of 220565056 in words is "two hundred twenty million, five hundred sixty-five thousand, fifty-six".