220516255 has 16 divisors (see below), whose sum is σ = 274222080. Its totient is φ = 170116128.

The previous prime is 220516243. The next prime is 220516267. The reversal of 220516255 is 552615022.

It is an interprime number because it is at equal distance from previous prime (220516243) and next prime (220516267).

It is a cyclic number.

It is not a de Polignac number, because 220516255 - 2²⁵ = 186961823 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10494 + ... + 23476.

It is an arithmetic number, because the mean of its divisors is an integer number (17138880).

Almost surely, 2^220516255 is an apocalyptic number.

220516255 is a deficient number, since it is larger than the sum of its proper divisors (53705825).

220516255 is a wasteful number, since it uses less digits than its factorization.

220516255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13110.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 220516255 is about 14849.7897291510. The cubic root of 220516255 is about 604.1529068818.

The spelling of 220516255 in words is "two hundred twenty million, five hundred sixteen thousand, two hundred fifty-five".