55115 has 8 divisors (see below), whose sum is σ = 67488. Its totient is φ = 43200.

The previous prime is 55109. The next prime is 55117. The reversal of 55115 is 51155.

55115 is nontrivially palindromic in base 9.

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

It is not a de Polignac number, because 55115 - 2⁶ = 55051 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55093 and 55102.

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 7 ways as a sum of consecutive naturals, for example, 290 + ... + 440.

It is an arithmetic number, because the mean of its divisors is an integer number (8436).

2⁵⁵¹¹⁵ is an apocalyptic number.

55115 is a deficient number, since it is larger than the sum of its proper divisors (12373).

55115 is a wasteful number, since it uses less digits than its factorization.

55115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229.

The product of its digits is 125, while the sum is 17.

The square root of 55115 is about 234.7658407861. The cubic root of 55115 is about 38.0560115818.

The spelling of 55115 in words is "fifty-five thousand, one hundred fifteen".