218266055 has 16 divisors (see below), whose sum is σ = 299841024. Its totient is φ = 149415840.

The previous prime is 218266051. The next prime is 218266063. The reversal of 218266055 is 550662812.

218266055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 218266055 - 2² = 218266051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218266051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17144 + ... + 27026.

It is an arithmetic number, because the mean of its divisors is an integer number (18740064).

Almost surely, 2^218266055 is an apocalyptic number.

218266055 is a deficient number, since it is larger than the sum of its proper divisors (81574969).

218266055 is an equidigital number, since it uses as much as digits as its factorization.

218266055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10526.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 218266055 is about 14773.8300721242. The cubic root of 218266055 is about 602.0909041431.

The spelling of 218266055 in words is "two hundred eighteen million, two hundred sixty-six thousand, fifty-five".