220455215 has 8 divisors (see below), whose sum is σ = 265918128. Its totient is φ = 175449600.

The previous prime is 220455181. The next prime is 220455217. The reversal of 220455215 is 512554022.

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

It is not a de Polignac number, because 220455215 - 2¹⁰ = 220454191 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 (220455217) 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, 113261 + ... + 115190.

It is an arithmetic number, because the mean of its divisors is an integer number (33239766).

Almost surely, 2^220455215 is an apocalyptic number.

220455215 is a deficient number, since it is larger than the sum of its proper divisors (45462913).

220455215 is a wasteful number, since it uses less digits than its factorization.

220455215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228649.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 220455215 is about 14847.7343389488. The cubic root of 220455215 is about 604.0971575575.

The spelling of 220455215 in words is "two hundred twenty million, four hundred fifty-five thousand, two hundred fifteen".