225310236 has 24 divisors (see below), whose sum is σ = 525982464. Its totient is φ = 75066480.

The previous prime is 225310219. The next prime is 225310357. The reversal of 225310236 is 632013522.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 33171 + ... + 39381.

It is an arithmetic number, because the mean of its divisors is an integer number (21915936).

Almost surely, 2^225310236 is an apocalyptic number.

It is an amenable number.

225310236 is an abundant number, since it is smaller than the sum of its proper divisors (300672228).

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

225310236 is a wasteful number, since it uses less digits than its factorization.

225310236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9241 (or 9239 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 225310236 is about 15010.3376377748. The cubic root of 225310236 is about 608.4996145851.

Adding to 225310236 its reverse (632013522), we get a palindrome (857323758).

The spelling of 225310236 in words is "two hundred twenty-five million, three hundred ten thousand, two hundred thirty-six".