225525525522 has 32 divisors (see below), whose sum is σ = 492519610944. Its totient is φ = 68276635200.

The previous prime is 225525525499. The next prime is 225525525593.

225525525522 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1540273 + ... + 1680324.

It is an arithmetic number, because the mean of its divisors is an integer number (15391237842).

Almost surely, 2^225525525522 is an apocalyptic number.

225525525522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

225525525522 is an abundant number, since it is smaller than the sum of its proper divisors (266994085422).

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

225525525522 is a wasteful number, since it uses less digits than its factorization.

225525525522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221674.

The product of its digits is 1000000, while the sum is 42.

The spelling of 225525525522 in words is "two hundred twenty-five billion, five hundred twenty-five million, five hundred twenty-five thousand, five hundred twenty-two".