55155 has 8 divisors (see below), whose sum is σ = 88272.
Its totient is φ = 29408.
The previous prime is 55147. The next prime is 55163.
It can be divided in two parts, 551 and 55, that added together give a palindrome (606).
55155 is nontrivially palindromic in base 10.
It is an interprime number because it is at equal distance from previous prime (55147) and next prime (55163).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 55155 - 23 = 55147 is a prime.
It is a nude number because it is divisible by every one of its digits.
It is a nialpdrome in base 16.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 1824 + ... + 1853.
It is an arithmetic number, because the mean of its divisors is an integer number (11034).
255155 is an apocalyptic number.
55155 is a deficient number, since it is larger than the sum of its proper divisors (33117).
55155 is a wasteful number, since it uses less digits than its factorization.
55155 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3685.
The product of its digits is 625, while the sum is 21.
The square root of 55155 is about 234.8510166041.
The cubic root of 55155 is about 38.0652158054.
The spelling of 55155 in words is "fifty-five thousand, one hundred fifty-five".