22055387028 has 24 divisors (see below), whose sum is σ = 51993114432. Its totient is φ = 7276003584.

The previous prime is 22055387009. The next prime is 22055387083. The reversal of 22055387028 is 82078355022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9472800 + ... + 9475127.

It is an arithmetic number, because the mean of its divisors is an integer number (2166379768).

Almost surely, 2^22055387028 is an apocalyptic number.

It is an amenable number.

22055387028 is an abundant number, since it is smaller than the sum of its proper divisors (29937727404).

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

22055387028 is a wasteful number, since it uses less digits than its factorization.

22055387028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18948031 (or 18948029 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 22055387028 in words is "twenty-two billion, fifty-five million, three hundred eighty-seven thousand, twenty-eight".