22543500505 has 8 divisors (see below), whose sum is σ = 28643506632. Its totient is φ = 16973929728.

The previous prime is 22543500503. The next prime is 22543500541. The reversal of 22543500505 is 50500534522.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 666724041 + 21876776464 = 25821^2 + 147908^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22543500505 - 2¹ = 22543500503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22543500503) 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 7 ways as a sum of consecutive naturals, for example, 132608742 + ... + 132608911.

It is an arithmetic number, because the mean of its divisors is an integer number (3580438329).

Almost surely, 2^22543500505 is an apocalyptic number.

It is an amenable number.

22543500505 is a deficient number, since it is larger than the sum of its proper divisors (6100006127).

22543500505 is a wasteful number, since it uses less digits than its factorization.

22543500505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265217675.

The product of its (nonzero) digits is 30000, while the sum is 31.

The spelling of 22543500505 in words is "twenty-two billion, five hundred forty-three million, five hundred thousand, five hundred five".