22535544500 has 96 divisors (see below), whose sum is σ = 56608371456. Its totient is φ = 7677072000.

The previous prime is 22535544481. The next prime is 22535544511. The reversal of 22535544500 is 544553522.

It is a super-2 number, since 2×22535544500² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 528995 + ... + 570005.

It is an arithmetic number, because the mean of its divisors is an integer number (589670536).

Almost surely, 2^22535544500 is an apocalyptic number.

22535544500 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 22535544500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28304185728).

22535544500 is an abundant number, since it is smaller than the sum of its proper divisors (34072826956).

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

22535544500 is a wasteful number, since it uses less digits than its factorization.

22535544500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41194 (or 41182 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 35.

The spelling of 22535544500 in words is "twenty-two billion, five hundred thirty-five million, five hundred forty-four thousand, five hundred".