225612372 has 24 divisors (see below), whose sum is σ = 557395776. Its totient is φ = 70780288.

The previous prime is 225612367. The next prime is 225612377. The reversal of 225612372 is 273216522.

It is an interprime number because it is at equal distance from previous prime (225612367) and next prime (225612377).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225612377) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 552768 + ... + 553175.

It is an arithmetic number, because the mean of its divisors is an integer number (23224824).

Almost surely, 2^225612372 is an apocalyptic number.

It is an amenable number.

225612372 is an abundant number, since it is smaller than the sum of its proper divisors (331783404).

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

225612372 is a wasteful number, since it uses less digits than its factorization.

225612372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105967 (or 1105965 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 225612372 is about 15020.3985299991. The cubic root of 225612372 is about 608.7714878987.

Adding to 225612372 its reverse (273216522), we get a palindrome (498828894).

The spelling of 225612372 in words is "two hundred twenty-five million, six hundred twelve thousand, three hundred seventy-two".