22540903393 has 2 divisors, whose sum is σ = 22540903394. Its totient is φ = 22540903392.

The previous prime is 22540903291. The next prime is 22540903433. The reversal of 22540903393 is 39330904522.

It is an a-pointer prime, because the next prime (22540903433) can be obtained adding 22540903393 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16104371409 + 6436531984 = 126903^2 + 80228^2 .

It is a cyclic number.

It is not a de Polignac number, because 22540903393 - 2²⁵ = 22507348961 is a prime.

It is not a weakly prime, because it can be changed into another prime (22540906393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270451696 + 11270451697.

It is an arithmetic number, because the mean of its divisors is an integer number (11270451697).

Almost surely, 2^22540903393 is an apocalyptic number.

It is an amenable number.

22540903393 is a deficient number, since it is larger than the sum of its proper divisors (1).

22540903393 is an equidigital number, since it uses as much as digits as its factorization.

22540903393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 40.

The spelling of 22540903393 in words is "twenty-two billion, five hundred forty million, nine hundred three thousand, three hundred ninety-three".