225006322520 has 128 divisors (see below), whose sum is σ = 596132265600. Its totient is φ = 74819137536.

The previous prime is 225006322487. The next prime is 225006322549. The reversal of 225006322520 is 25223600522.

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, 3207986 + ... + 3277374.

It is an arithmetic number, because the mean of its divisors is an integer number (4657283325).

Almost surely, 2^225006322520 is an apocalyptic number.

225006322520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225006322520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298066132800).

225006322520 is an abundant number, since it is smaller than the sum of its proper divisors (371125943080).

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

225006322520 is a wasteful number, since it uses less digits than its factorization.

225006322520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69757 (or 69753 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 225006322520 in words is "two hundred twenty-five billion, six million, three hundred twenty-two thousand, five hundred twenty".