218552 has 16 divisors (see below), whose sum is σ = 434160. Its totient is φ = 102784.

The previous prime is 218551. The next prime is 218579. The reversal of 218552 is 255812.

218552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668 + ... + 939.

It is an arithmetic number, because the mean of its divisors is an integer number (27135).

2²¹⁸⁵⁵² is an apocalyptic number.

It is an amenable number.

218552 is a deficient number, since it is larger than the sum of its proper divisors (215608).

218552 is a wasteful number, since it uses less digits than its factorization.

218552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 1626 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 218552 is about 467.4954545234. The cubic root of 218552 is about 60.2353717579.

The spelling of 218552 in words is "two hundred eighteen thousand, five hundred fifty-two".