220558 has 16 divisors (see below), whose sum is σ = 378000. Its totient is φ = 95616.

The previous prime is 220553. The next prime is 220559. The reversal of 220558 is 855022.

220558 is nontrivially palindromic in base 12.

It is a super-3 number, since 3×220558³ = 32187681821943336, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220553) by changing a digit.

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, 193 + ... + 691.

It is an arithmetic number, because the mean of its divisors is an integer number (23625).

2²²⁰⁵⁵⁸ is an apocalyptic number.

220558 is a deficient number, since it is larger than the sum of its proper divisors (157442).

220558 is a wasteful number, since it uses less digits than its factorization.

220558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 220558 is about 469.6360292823. The cubic root of 220558 is about 60.4191027687.

It can be divided in two parts, 220 and 558, that multiplied together give a triangular number (122760 = T₄₉₅).

The spelling of 220558 in words is "two hundred twenty thousand, five hundred fifty-eight".