55133 has 4 divisors (see below), whose sum is σ = 59388.
Its totient is φ = 50880.
The previous prime is 55127. The next prime is 55147. The reversal of 55133 is 33155.
Adding to 55133 its reverse (33155), we get a palindrome (88288).
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 34969 + 20164 = 187^2 + 142^2
It is a cyclic number.
It is not a de Polignac number, because 55133 - 24 = 55117 is a prime.
It is a Duffinian number.
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 55133.
It is not an unprimeable number, because it can be changed into a prime (55103) 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 3 ways as a sum of consecutive naturals, for example, 2108 + ... + 2133.
It is an arithmetic number, because the mean of its divisors is an integer number (14847).
255133 is an apocalyptic number.
It is an amenable number.
55133 is a deficient number, since it is larger than the sum of its proper divisors (4255).
55133 is a wasteful number, since it uses less digits than its factorization.
55133 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4254.
The product of its digits is 225, while the sum is 17.
The square root of 55133 is about 234.8041737278.
The cubic root of 55133 is about 38.0601540333.
The spelling of 55133 in words is "fifty-five thousand, one hundred thirty-three".