22355243500 has 48 divisors (see below), whose sum is σ = 48971718432. Its totient is φ = 8915016000.

The previous prime is 22355243447. The next prime is 22355243623. The reversal of 22355243500 is 534255322.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97962 + ... + 233038.

It is an arithmetic number, because the mean of its divisors is an integer number (1020244134).

Almost surely, 2^22355243500 is an apocalyptic number.

22355243500 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 22355243500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24485859216).

22355243500 is an abundant number, since it is smaller than the sum of its proper divisors (26616474932).

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

22355243500 is a wasteful number, since it uses less digits than its factorization.

22355243500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135427 (or 135415 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 31.

Adding to 22355243500 its reverse (534255322), we get a palindrome (22889498822).

The spelling of 22355243500 in words is "twenty-two billion, three hundred fifty-five million, two hundred forty-three thousand, five hundred".