225613052220 has 96 divisors (see below), whose sum is σ = 676998379008. Its totient is φ = 55992321792.

The previous prime is 225613052219. The next prime is 225613052303. The reversal of 225613052220 is 22250316522.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2158234 + ... + 2260353.

It is an arithmetic number, because the mean of its divisors is an integer number (7052066448).

Almost surely, 2^225613052220 is an apocalyptic number.

225613052220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225613052220 is an abundant number, since it is smaller than the sum of its proper divisors (451385326788).

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

225613052220 is a wasteful number, since it uses less digits than its factorization.

225613052220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418659 (or 4418657 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 225613052220 its reverse (22250316522), we get a palindrome (247863368742).

The spelling of 225613052220 in words is "two hundred twenty-five billion, six hundred thirteen million, fifty-two thousand, two hundred twenty".