220958505 has 48 divisors (see below), whose sum is σ = 406897920. Its totient is φ = 110605824.

The previous prime is 220958501. The next prime is 220958519. The reversal of 220958505 is 505859022.

It is not a de Polignac number, because 220958505 - 2² = 220958501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220958505.

It is not an unprimeable number, because it can be changed into a prime (220958501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95472 + ... + 97758.

It is an arithmetic number, because the mean of its divisors is an integer number (8477040).

Almost surely, 2^220958505 is an apocalyptic number.

It is an amenable number.

220958505 is a deficient number, since it is larger than the sum of its proper divisors (185939415).

220958505 is a wasteful number, since it uses less digits than its factorization.

220958505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430 (or 2427 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 220958505 is about 14864.6730539222. The cubic root of 220958505 is about 604.5565176506.

The spelling of 220958505 in words is "two hundred twenty million, nine hundred fifty-eight thousand, five hundred five".