22400235250 has 128 divisors (see below), whose sum is σ = 45368294400. Its totient is φ = 8254828800.

The previous prime is 22400235173. The next prime is 22400235259. The reversal of 22400235250 is 5253200422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (22400235259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60054064 + ... + 60054436.

It is an arithmetic number, because the mean of its divisors is an integer number (354439800).

Almost surely, 2^22400235250 is an apocalyptic number.

22400235250 is an abundant number, since it is smaller than the sum of its proper divisors (22968059150).

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

22400235250 is a wasteful number, since it uses less digits than its factorization.

22400235250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 22400235250 its reverse (5253200422), we get a palindrome (27653435672).

The spelling of 22400235250 in words is "twenty-two billion, four hundred million, two hundred thirty-five thousand, two hundred fifty".