55210 has 8 divisors (see below), whose sum is σ = 99396.
Its totient is φ = 22080.
The previous prime is 55207. The next prime is 55213. The reversal of 55210 is 1255.
Adding to 55210 its reverse (1255), we get a palindrome (56465).
It is an interprime number because it is at equal distance from previous prime (55207) and next prime (55213).
It can be written as a sum of positive squares in 2 ways, for example, as 53361 + 1849 = 231^2 + 43^2
It is a sphenic number, since it is the product of 3 distinct primes.
It is a plaindrome in base 15.
It is a nialpdrome in base 10.
It is not an unprimeable number, because it can be changed into a prime (55213) 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, 2751 + ... + 2770.
255210 is an apocalyptic number.
55210 is a deficient number, since it is larger than the sum of its proper divisors (44186).
55210 is a wasteful number, since it uses less digits than its factorization.
55210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5528.
The product of its (nonzero) digits is 50, while the sum is 13.
The square root of 55210 is about 234.9680829389.
The cubic root of 55210 is about 38.0778643495.
The spelling of 55210 in words is "fifty-five thousand, two hundred ten".