22052242543 has 4 divisors (see below), whose sum is σ = 22067134128. Its totient is φ = 22037350960.

The previous prime is 22052242489. The next prime is 22052242549. The reversal of 22052242543 is 34524225022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22052242543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22052242549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7443571 + ... + 7446532.

It is an arithmetic number, because the mean of its divisors is an integer number (5516783532).

Almost surely, 2^22052242543 is an apocalyptic number.

22052242543 is a deficient number, since it is larger than the sum of its proper divisors (14891585).

22052242543 is a wasteful number, since it uses less digits than its factorization.

22052242543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14891584.

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 22052242543 its reverse (34524225022), we get a palindrome (56576467565).

The spelling of 22052242543 in words is "twenty-two billion, fifty-two million, two hundred forty-two thousand, five hundred forty-three".