22004515493 has 2 divisors, whose sum is σ = 22004515494. Its totient is φ = 22004515492.

The previous prime is 22004515457. The next prime is 22004515523. The reversal of 22004515493 is 39451540022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15815074564 + 6189440929 = 125758^2 + 78673^2 .

It is a cyclic number.

It is not a de Polignac number, because 22004515493 - 2²⁶ = 21937406629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22004505493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11002257746 + 11002257747.

It is an arithmetic number, because the mean of its divisors is an integer number (11002257747).

Almost surely, 2^22004515493 is an apocalyptic number.

It is an amenable number.

22004515493 is a deficient number, since it is larger than the sum of its proper divisors (1).

22004515493 is an equidigital number, since it uses as much as digits as its factorization.

22004515493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 22004515493 in words is "twenty-two billion, four million, five hundred fifteen thousand, four hundred ninety-three".