22152530500 has 96 divisors (see below), whose sum is σ = 50822972928. Its totient is φ = 8418960000.

The previous prime is 22152530473. The next prime is 22152530507. The reversal of 22152530500 is 503525122.

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 (22152530507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1730122 + ... + 1742878.

It is an arithmetic number, because the mean of its divisors is an integer number (529405968).

Almost surely, 2^22152530500 is an apocalyptic number.

22152530500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22152530500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25411486464).

22152530500 is an abundant number, since it is smaller than the sum of its proper divisors (28670442428).

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

22152530500 is a wasteful number, since it uses less digits than its factorization.

22152530500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12950 (or 12938 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 22152530500 in words is "twenty-two billion, one hundred fifty-two million, five hundred thirty thousand, five hundred".