220255 has 24 divisors (see below), whose sum is σ = 328320. Its totient is φ = 141120.

The previous prime is 220243. The next prime is 220279. The reversal of 220255 is 552022.

It is a de Polignac number, because none of the positive numbers 2^k-220255 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7090 + ... + 7120.

It is an arithmetic number, because the mean of its divisors is an integer number (13680).

2²²⁰²⁵⁵ is an apocalyptic number.

220255 is a deficient number, since it is larger than the sum of its proper divisors (108065).

220255 is a wasteful number, since it uses less digits than its factorization.

220255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 220255 is about 469.3133281721. The cubic root of 220255 is about 60.3914224037.

Adding to 220255 its reverse (552022), we get a palindrome (772277).

The spelling of 220255 in words is "two hundred twenty thousand, two hundred fifty-five".