225540255 has 16 divisors (see below), whose sum is σ = 361801440. Its totient is φ = 119975808.

The previous prime is 225540253. The next prime is 225540269. The reversal of 225540255 is 552045522.

It is not a de Polignac number, because 225540255 - 2¹ = 225540253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225540251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13492 + ... + 25161.

It is an arithmetic number, because the mean of its divisors is an integer number (22612590).

Almost surely, 2^225540255 is an apocalyptic number.

225540255 is a deficient number, since it is larger than the sum of its proper divisors (136261185).

225540255 is a wasteful number, since it uses less digits than its factorization.

225540255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39050.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 225540255 is about 15017.9977027565. The cubic root of 225540255 is about 608.7066163793.

Adding to 225540255 its reverse (552045522), we get a palindrome (777585777).

The spelling of 225540255 in words is "two hundred twenty-five million, five hundred forty thousand, two hundred fifty-five".