22005250505 has 24 divisors (see below), whose sum is σ = 30923742600. Its totient is φ = 14988019200.

The previous prime is 22005250469. The next prime is 22005250511. The reversal of 22005250505 is 50505250022.

It can be written as a sum of positive squares in 4 ways, for example, as 4411085056 + 17594165449 = 66416^2 + 132643^2 .

It is not a de Polignac number, because 22005250505 - 2¹⁰ = 22005249481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264896 + ... + 337905.

It is an arithmetic number, because the mean of its divisors is an integer number (1288489275).

Almost surely, 2^22005250505 is an apocalyptic number.

It is an amenable number.

22005250505 is a deficient number, since it is larger than the sum of its proper divisors (8918492095).

22005250505 is a wasteful number, since it uses less digits than its factorization.

22005250505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602969 (or 602962 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 26.

The spelling of 22005250505 in words is "twenty-two billion, five million, two hundred fifty thousand, five hundred five".