22540020037 has 2 divisors, whose sum is σ = 22540020038. Its totient is φ = 22540020036.

The previous prime is 22540020031. The next prime is 22540020089. The reversal of 22540020037 is 73002004522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11433811041 + 11106208996 = 106929^2 + 105386^2 .

It is a cyclic number.

It is not a de Polignac number, because 22540020037 - 2¹⁵ = 22539987269 is a prime.

It is a super-2 number, since 2×22540020037² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22540019993 and 22540020020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22540020031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270010018 + 11270010019.

It is an arithmetic number, because the mean of its divisors is an integer number (11270010019).

Almost surely, 2^22540020037 is an apocalyptic number.

It is an amenable number.

22540020037 is a deficient number, since it is larger than the sum of its proper divisors (1).

22540020037 is an equidigital number, since it uses as much as digits as its factorization.

22540020037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 25.

Adding to 22540020037 its reverse (73002004522), we get a palindrome (95542024559).

The spelling of 22540020037 in words is "twenty-two billion, five hundred forty million, twenty thousand, thirty-seven".