22256453533 has 4 divisors (see below), whose sum is σ = 23565656700. Its totient is φ = 20947250368.

The previous prime is 22256453521. The next prime is 22256453537. The reversal of 22256453533 is 33535465222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6409923844 + 15846529689 = 80062^2 + 125883^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22256453533 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22256453537) 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 3 ways as a sum of consecutive naturals, for example, 654601558 + ... + 654601591.

It is an arithmetic number, because the mean of its divisors is an integer number (5891414175).

Almost surely, 2^22256453533 is an apocalyptic number.

It is an amenable number.

22256453533 is a deficient number, since it is larger than the sum of its proper divisors (1309203167).

22256453533 is a wasteful number, since it uses less digits than its factorization.

22256453533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309203166.

The product of its digits is 648000, while the sum is 40.

The spelling of 22256453533 in words is "twenty-two billion, two hundred fifty-six million, four hundred fifty-three thousand, five hundred thirty-three".