225510133 has 4 divisors (see below), whose sum is σ = 225546048. Its totient is φ = 225474220.

The previous prime is 225510121. The next prime is 225510203. The reversal of 225510133 is 331015522.

225510133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331015522 = 2 ⋅165507761.

It is a cyclic number.

It is not a de Polignac number, because 225510133 - 2⁹ = 225509621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225517133) 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, 5791 + ... + 22012.

It is an arithmetic number, because the mean of its divisors is an integer number (56386512).

Almost surely, 2^225510133 is an apocalyptic number.

It is an amenable number.

225510133 is a deficient number, since it is larger than the sum of its proper divisors (35915).

225510133 is an equidigital number, since it uses as much as digits as its factorization.

225510133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35914.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 225510133 is about 15016.9948058858. The cubic root of 225510133 is about 608.6795165947.

Adding to 225510133 its reverse (331015522), we get a palindrome (556525655).

It can be divided in two parts, 22 and 5510133, that added together give a palindrome (5510155).

The spelling of 225510133 in words is "two hundred twenty-five million, five hundred ten thousand, one hundred thirty-three".