225055 has 16 divisors (see below), whose sum is σ = 299520. Its totient is φ = 161568.

The previous prime is 225037. The next prime is 225061. The reversal of 225055 is 550522.

It is a cyclic number.

It is not a de Polignac number, because 225055 - 2⁵ = 225023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2134 + ... + 2236.

It is an arithmetic number, because the mean of its divisors is an integer number (18720).

2²²⁵⁰⁵⁵ is an apocalyptic number.

225055 is a deficient number, since it is larger than the sum of its proper divisors (74465).

225055 is a wasteful number, since it uses less digits than its factorization.

225055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150.

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 225055 is about 474.3996205732. The cubic root of 225055 is about 60.8269754203.

Adding to 225055 its reverse (550522), we get a palindrome (775577).

The spelling of 225055 in words is "two hundred twenty-five thousand, fifty-five".