220563291 has 8 divisors (see below), whose sum is σ = 316706320. Its totient is φ = 135731232.

The previous prime is 220563283. The next prime is 220563293. The reversal of 220563291 is 192365022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220563291 - 2³ = 220563283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220563293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2827696 + ... + 2827773.

It is an arithmetic number, because the mean of its divisors is an integer number (39588290).

Almost surely, 2^220563291 is an apocalyptic number.

220563291 is a deficient number, since it is larger than the sum of its proper divisors (96143029).

220563291 is a wasteful number, since it uses less digits than its factorization.

220563291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5655485.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 220563291 is about 14851.3733708368. The cubic root of 220563291 is about 604.1958589927.

The spelling of 220563291 in words is "two hundred twenty million, five hundred sixty-three thousand, two hundred ninety-one".