22505835949 has 2 divisors, whose sum is σ = 22505835950. Its totient is φ = 22505835948.

The previous prime is 22505835839. The next prime is 22505835953. The reversal of 22505835949 is 94953850522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22427159049 + 78676900 = 149757^2 + 8870^2 .

It is a cyclic number.

It is not a de Polignac number, because 22505835949 - 2²³ = 22497447341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22505835896 and 22505835905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22505832949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11252917974 + 11252917975.

It is an arithmetic number, because the mean of its divisors is an integer number (11252917975).

Almost surely, 2^22505835949 is an apocalyptic number.

It is an amenable number.

22505835949 is a deficient number, since it is larger than the sum of its proper divisors (1).

22505835949 is an equidigital number, since it uses as much as digits as its factorization.

22505835949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888000, while the sum is 52.

The spelling of 22505835949 in words is "twenty-two billion, five hundred five million, eight hundred thirty-five thousand, nine hundred forty-nine".