55122 has 8 divisors (see below), whose sum is σ = 110256. Its totient is φ = 18372.

The previous prime is 55117. The next prime is 55127. The reversal of 55122 is 22155.

It is an interprime number because it is at equal distance from previous prime (55117) and next prime (55127).

It is a sphenic number, since it is the product of 3 distinct primes.

55122 is an admirable number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (55127) 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, 4588 + ... + 4599.

It is an arithmetic number, because the mean of its divisors is an integer number (13782).

2⁵⁵¹²² is an apocalyptic number.

55122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55128).

55122 is a wasteful number, since it uses less digits than its factorization.

55122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9192.

The product of its digits is 100, while the sum is 15.

The square root of 55122 is about 234.7807487849. The cubic root of 55122 is about 38.0576226423.

Adding to 55122 its reverse (22155), we get a palindrome (77277).

The spelling of 55122 in words is "fifty-five thousand, one hundred twenty-two".