22175472505 has 4 divisors (see below), whose sum is σ = 26610567012. Its totient is φ = 17740378000.

The previous prime is 22175472497. The next prime is 22175472521. The reversal of 22175472505 is 50527457122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50527457122 = 2 ⋅25263728561.

It can be written as a sum of positive squares in 2 ways, for example, as 16504027024 + 5671445481 = 128468^2 + 75309^2 .

It is not a de Polignac number, because 22175472505 - 2³ = 22175472497 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 Duffinian number.

It is an unprimeable number.

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, 2217547246 + ... + 2217547255.

It is an arithmetic number, because the mean of its divisors is an integer number (6652641753).

Almost surely, 2^22175472505 is an apocalyptic number.

It is an amenable number.

22175472505 is a deficient number, since it is larger than the sum of its proper divisors (4435094507).

22175472505 is an equidigital number, since it uses as much as digits as its factorization.

22175472505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435094506.

The product of its (nonzero) digits is 196000, while the sum is 40.

The spelling of 22175472505 in words is "twenty-two billion, one hundred seventy-five million, four hundred seventy-two thousand, five hundred five".