220455799 has 4 divisors (see below), whose sum is σ = 221056864. Its totient is φ = 219854736.

The previous prime is 220455791. The next prime is 220455827. The reversal of 220455799 is 997554022.

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 220455799 - 2³ = 220455791 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 (220455791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299982 + ... + 300715.

It is an arithmetic number, because the mean of its divisors is an integer number (55264216).

Almost surely, 2^220455799 is an apocalyptic number.

220455799 is a deficient number, since it is larger than the sum of its proper divisors (601065).

220455799 is an equidigital number, since it uses as much as digits as its factorization.

220455799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601064.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 220455799 is about 14847.7540052359. The cubic root of 220455799 is about 604.0976909878.

The spelling of 220455799 in words is "two hundred twenty million, four hundred fifty-five thousand, seven hundred ninety-nine".