22555533555522 has 256 divisors, whose sum is σ = 55798485811200. Its totient is φ = 6696765504000.

The previous prime is 22555533555491. The next prime is 22555533555523.

22555533555522 is a `hidden beast` number, since 2 + 2 + 5 + 5 + 5 + 5 + 33 + 55 + 552 + 2 = 666.

22555533555522 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22555533555523) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5685789183 + ... + 5685793149.

It is an arithmetic number, because the mean of its divisors is an integer number (217962835200).

Almost surely, 2^{22555533555522} is an apocalyptic number.

22555533555522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22555533555522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27899242905600).

22555533555522 is an abundant number, since it is smaller than the sum of its proper divisors (33242952255678).

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

22555533555522 is a wasteful number, since it uses less digits than its factorization.

22555533555522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030 (or 5024 counting only the distinct ones).

The product of its digits is 56250000, while the sum is 54.

The spelling of 22555533555522 in words is "twenty-two trillion, five hundred fifty-five billion, five hundred thirty-three million, five hundred fifty-five thousand, five hundred twenty-two".