55112 has 12 divisors (see below), whose sum is σ = 104595.
Its totient is φ = 27224.
The previous prime is 55109. The next prime is 55117. The reversal of 55112 is 21155.
It is a powerful number, because all its prime factors have an exponent greater than 1
and also an Achilles number because it is not a perfect power.
55112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 27556 + 27556 = 166^2 + 166^2
It is an ABA number since it can be written as A⋅BA, here for A=2, B=166.
It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 623 + ... + 705.
255112 is an apocalyptic number.
It is an amenable number.
55112 is a deficient number, since it is larger than the sum of its proper divisors (49483).
55112 is an equidigital number, since it uses as much as digits as its factorization.
55112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 172 (or 85 counting only the distinct ones).
The product of its digits is 50, while the sum is 14.
The square root of 55112 is about 234.7594513539.
The cubic root of 55112 is about 38.0553210855.
Multiplying 55112 by its product of digits (50), we get a square (2755600 = 16602).
Adding to 55112 its reverse (21155), we get a palindrome (76267).
The spelling of 55112 in words is "fifty-five thousand, one hundred twelve".