225501789312 has 216 divisors, whose sum is σ = 690159698865. Its totient is φ = 70659698688.

The previous prime is 225501789307. The next prime is 225501789341. The reversal of 225501789312 is 213987105522.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

225501789312 is a `hidden beast` number, since 2 + 2 + 550 + 1 + 7 + 8 + 93 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 206384855616 + 19116933696 = 454296^2 + 138264^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=335784.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 273999333 + ... + 274000155.

Almost surely, 2^225501789312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225501789312

225501789312 is an abundant number, since it is smaller than the sum of its proper divisors (464657909553).

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

225501789312 is an frugal number, since it uses more digits than its factorization.

225501789312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 225501789312 in words is "two hundred twenty-five billion, five hundred one million, seven hundred eighty-nine thousand, three hundred twelve".