22565002049 has 2 divisors, whose sum is σ = 22565002050. Its totient is φ = 22565002048.

The previous prime is 22565002043. The next prime is 22565002063. The reversal of 22565002049 is 94020056522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22372680625 + 192321424 = 149575^2 + 13868^2 .

It is a cyclic number.

It is not a de Polignac number, because 22565002049 - 2³² = 18270034753 is a prime.

It is not a weakly prime, because it can be changed into another prime (22565002043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11282501024 + 11282501025.

It is an arithmetic number, because the mean of its divisors is an integer number (11282501025).

Almost surely, 2^22565002049 is an apocalyptic number.

It is an amenable number.

22565002049 is a deficient number, since it is larger than the sum of its proper divisors (1).

22565002049 is an equidigital number, since it uses as much as digits as its factorization.

22565002049 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 22565002049 in words is "twenty-two billion, five hundred sixty-five million, two thousand, forty-nine".