22555887543 has 24 divisors (see below), whose sum is σ = 37254404096. Its totient is φ = 12882402000.

The previous prime is 22555887533. The next prime is 22555887581. The reversal of 22555887543 is 34578855522.

It is a happy number.

22555887543 is a `hidden beast` number, since 2 + 2 + 5 + 5 + 588 + 7 + 54 + 3 = 666.

It is not a de Polignac number, because 22555887543 - 2¹⁷ = 22555756471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22555887543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22555887533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31158 + ... + 214668.

Almost surely, 2^22555887543 is an apocalyptic number.

22555887543 is a deficient number, since it is larger than the sum of its proper divisors (14698516553).

22555887543 is a wasteful number, since it uses less digits than its factorization.

22555887543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185475 (or 185472 counting only the distinct ones).

The product of its digits is 13440000, while the sum is 54.

The spelling of 22555887543 in words is "twenty-two billion, five hundred fifty-five million, eight hundred eighty-seven thousand, five hundred forty-three".