2255 has 8 divisors (see below), whose sum is σ = 3024.
Its totient is φ = 1600.
The previous prime is 2251. The next prime is 2267. The reversal of 2255 is 5522.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2255 - 22 = 2251 is a prime.
It is a Duffinian number.
It is a plaindrome in base 10, base 12 and base 16.
It is a nialpdrome in base 14.
It is a zygodrome in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2251) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35 + ... + 75.
It is an arithmetic number, because the mean of its divisors is an integer number (378).
2255 is a deficient number, since it is larger than the sum of its proper divisors (769).
2255 is a wasteful number, since it uses less digits than its factorization.
With its successor (2256) it forms an eRAP, since the sums of their prime factors are consecutive (57 and 58).
2255 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57.
The product of its digits is 100, while the sum is 14.
The square root of 2255 is about 47.4868402823.
The cubic root of 2255 is about 13.1134062396.
Adding to 2255 its reverse (5522), we get a palindrome (7777).
It can be divided in two parts, 22 and 55, that added together give a palindrome (77).
The spelling of 2255 in words is "two thousand, two hundred fifty-five".