22573450242 has 54 divisors (see below), whose sum is σ = 56905556643. Its totient is φ = 6448282344.

The previous prime is 22573450223. The next prime is 22573450243. The reversal of 22573450242 is 24205437522.

22573450242 is a `hidden beast` number, since 2 + 2 + 573 + 45 + 0 + 2 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11286725121 + 11286725121 = 106239^2 + 106239^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106239.

It is a junction number, because it is equal to n+sod(n) for n = 22573450197 and 22573450206.

It is not an unprimeable number, because it can be changed into a prime (22573450243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4459509 + ... + 4464567.

Almost surely, 2^22573450242 is an apocalyptic number.

22573450242 is an abundant number, since it is smaller than the sum of its proper divisors (34332106401).

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

22573450242 is an frugal number, since it uses more digits than its factorization.

22573450242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10140 (or 5071 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 36.

Adding to 22573450242 its reverse (24205437522), we get a palindrome (46778887764).

The spelling of 22573450242 in words is "twenty-two billion, five hundred seventy-three million, four hundred fifty thousand, two hundred forty-two".