22443255553 has 8 divisors (see below), whose sum is σ = 22649443848. Its totient is φ = 22237200384.

The previous prime is 22443255539. The next prime is 22443255581. The reversal of 22443255553 is 35555234422.

It can be written as a sum of positive squares in 4 ways, for example, as 8050934529 + 14392321024 = 89727^2 + 119968^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22443255553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22443255533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322825 + ... + 386137.

It is an arithmetic number, because the mean of its divisors is an integer number (2831180481).

Almost surely, 2^22443255553 is an apocalyptic number.

It is an amenable number.

22443255553 is a deficient number, since it is larger than the sum of its proper divisors (206188295).

22443255553 is a wasteful number, since it uses less digits than its factorization.

22443255553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66563.

The product of its digits is 720000, while the sum is 40.

Adding to 22443255553 its reverse (35555234422), we get a palindrome (57998489975).

The spelling of 22443255553 in words is "twenty-two billion, four hundred forty-three million, two hundred fifty-five thousand, five hundred fifty-three".