22531450332 has 24 divisors (see below), whose sum is σ = 52581883536. Its totient is φ = 7509269248.

The previous prime is 22531450313. The next prime is 22531450343. The reversal of 22531450332 is 23305413522.

It is a self number, because there is not a number n which added to its sum of digits gives 22531450332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72813 + ... + 224420.

It is an arithmetic number, because the mean of its divisors is an integer number (2190911814).

Almost surely, 2^22531450332 is an apocalyptic number.

It is an amenable number.

22531450332 is an abundant number, since it is smaller than the sum of its proper divisors (30050433204).

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

22531450332 is a wasteful number, since it uses less digits than its factorization.

22531450332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303557 (or 303555 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 22531450332 its reverse (23305413522), we get a palindrome (45836863854).

The spelling of 22531450332 in words is "twenty-two billion, five hundred thirty-one million, four hundred fifty thousand, three hundred thirty-two".