22440232352550 has 24 divisors (see below), whose sum is σ = 55651776234696. Its totient is φ = 5984061960640.

The previous prime is 22440232352479. The next prime is 22440232352569. The reversal of 22440232352550 is 5525323204422.

It is a junction number, because it is equal to n+sod(n) for n = 22440232352499 and 22440232352508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74800774359 + ... + 74800774658.

It is an arithmetic number, because the mean of its divisors is an integer number (2318824009779).

Almost surely, 2^{22440232352550} is an apocalyptic number.

22440232352550 is an abundant number, since it is smaller than the sum of its proper divisors (33211543882146).

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

22440232352550 is a wasteful number, since it uses less digits than its factorization.

22440232352550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149601549032 (or 149601549027 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 39.

Adding to 22440232352550 its reverse (5525323204422), we get a palindrome (27965555556972).

The spelling of 22440232352550 in words is "twenty-two trillion, four hundred forty billion, two hundred thirty-two million, three hundred fifty-two thousand, five hundred fifty".