225291192522 has 48 divisors (see below), whose sum is σ = 495535936896. Its totient is φ = 68233158400.

The previous prime is 225291192499. The next prime is 225291192527.

225291192522 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×225291192522² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225291192527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1275418 + ... + 1441274.

It is an arithmetic number, because the mean of its divisors is an integer number (10323665352).

Almost surely, 2^225291192522 is an apocalyptic number.

225291192522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

225291192522 is an abundant number, since it is smaller than the sum of its proper divisors (270244744374).

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

225291192522 is a wasteful number, since it uses less digits than its factorization.

225291192522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167755 (or 167744 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The spelling of 225291192522 in words is "two hundred twenty-five billion, two hundred ninety-one million, one hundred ninety-two thousand, five hundred twenty-two".