218055 has 8 divisors (see below), whose sum is σ = 348912. Its totient is φ = 116288.

The previous prime is 218047. The next prime is 218069. The reversal of 218055 is 550812.

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

It is a cyclic number.

It is not a de Polignac number, because 218055 - 2³ = 218047 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 218055.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7254 + ... + 7283.

It is an arithmetic number, because the mean of its divisors is an integer number (43614).

2²¹⁸⁰⁵⁵ is an apocalyptic number.

218055 is a deficient number, since it is larger than the sum of its proper divisors (130857).

218055 is a wasteful number, since it uses less digits than its factorization.

218055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14545.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 218055 is about 466.9635960115. The cubic root of 218055 is about 60.1896775199.

Adding to 218055 its reverse (550812), we get a palindrome (768867).

The spelling of 218055 in words is "two hundred eighteen thousand, fifty-five".