8220522049 has 2 divisors, whose sum is σ = 8220522050. Its totient is φ = 8220522048.

The previous prime is 8220521971. The next prime is 8220522073. The reversal of 8220522049 is 9402250228.

8220522049 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7565520400 + 655001649 = 86980^2 + 25593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8220522049 is a prime.

It is not a weakly prime, because it can be changed into another prime (8220522449) 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, 4110261024 + 4110261025.

It is an arithmetic number, because the mean of its divisors is an integer number (4110261025).

Almost surely, 2^8220522049 is an apocalyptic number.

It is an amenable number.

8220522049 is a deficient number, since it is larger than the sum of its proper divisors (1).

8220522049 is an equidigital number, since it uses as much as digits as its factorization.

8220522049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 8220522049 is about 90667.0946319556. The cubic root of 8220522049 is about 2018.2105225975.

The spelling of 8220522049 in words is "eight billion, two hundred twenty million, five hundred twenty-two thousand, forty-nine".