225550 has 24 divisors (see below), whose sum is σ = 453096. Its totient is φ = 83040.

The previous prime is 225529. The next prime is 225569. The reversal of 225550 is 55522.

225550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 477 + ... + 823.

It is an arithmetic number, because the mean of its divisors is an integer number (18879).

2²²⁵⁵⁵⁰ is an apocalyptic number.

225550 is an abundant number, since it is smaller than the sum of its proper divisors (227546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225550 is a wasteful number, since it uses less digits than its factorization.

225550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 367 counting only the distinct ones).

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

The square root of 225550 is about 474.9210460698. The cubic root of 225550 is about 60.8715383123.

It can be divided in two parts, 2 and 25550, that added together give a palindrome (25552).

The spelling of 225550 in words is "two hundred twenty-five thousand, five hundred fifty".