225433252220 has 48 divisors (see below), whose sum is σ = 525200457600. Its totient is φ = 80586304320.

The previous prime is 225433252193. The next prime is 225433252241. The reversal of 225433252220 is 22252334522.

It is a super-2 number, since 2×225433252220² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8670890 + ... + 8696849.

It is an arithmetic number, because the mean of its divisors is an integer number (10941676200).

Almost surely, 2^225433252220 is an apocalyptic number.

225433252220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225433252220 is an abundant number, since it is smaller than the sum of its proper divisors (299767205380).

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

225433252220 is a wasteful number, since it uses less digits than its factorization.

225433252220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17367818 (or 17367816 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 225433252220 its reverse (22252334522), we get a palindrome (247685586742).

The spelling of 225433252220 in words is "two hundred twenty-five billion, four hundred thirty-three million, two hundred fifty-two thousand, two hundred twenty".