22520042813 has 2 divisors, whose sum is σ = 22520042814. Its totient is φ = 22520042812.

The previous prime is 22520042777. The next prime is 22520042843. The reversal of 22520042813 is 31824002522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22176570724 + 343472089 = 148918^2 + 18533^2 .

It is a cyclic number.

It is not a de Polignac number, because 22520042813 - 2²⁶ = 22452933949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22520042843) by changing a digit.

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 as a sum of consecutive naturals, namely, 11260021406 + 11260021407.

It is an arithmetic number, because the mean of its divisors is an integer number (11260021407).

Almost surely, 2^22520042813 is an apocalyptic number.

It is an amenable number.

22520042813 is a deficient number, since it is larger than the sum of its proper divisors (1).

22520042813 is an equidigital number, since it uses as much as digits as its factorization.

22520042813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 22520042813 in words is "twenty-two billion, five hundred twenty million, forty-two thousand, eight hundred thirteen".