55110 has 32 divisors (see below), whose sum is σ = 145152. Its totient is φ = 13280.

The previous prime is 55109. The next prime is 55117. The reversal of 55110 is 1155.

It is a super-2 number, since 2×55110² = 6074224200, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55117) 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, 247 + ... + 413.

It is an arithmetic number, because the mean of its divisors is an integer number (4536).

2⁵⁵¹¹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72576).

55110 is an abundant number, since it is smaller than the sum of its proper divisors (90042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55110 is a wasteful number, since it uses less digits than its factorization.

55110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188.

The product of its (nonzero) digits is 25, while the sum is 12.

The square root of 55110 is about 234.7551916359. The cubic root of 55110 is about 38.0548607408.

Adding to 55110 its reverse (1155), we get a palindrome (56265).

It can be divided in two parts, 551 and 10, that added together give a triangular number (561 = T₃₃).

The spelling of 55110 in words is "fifty-five thousand, one hundred ten".