8222755909 has 2 divisors, whose sum is σ = 8222755910. Its totient is φ = 8222755908.

The previous prime is 8222755907. The next prime is 8222755927. The reversal of 8222755909 is 9095572228.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4779648225 + 3443107684 = 69135^2 + 58678^2 .

It is a cyclic number.

It is not a de Polignac number, because 8222755909 - 2¹ = 8222755907 is a prime.

It is a super-2 number, since 2×8222755909² (a number of 21 digits) contains 22 as substring.

Together with 8222755907, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8222755907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4111377954 + 4111377955.

It is an arithmetic number, because the mean of its divisors is an integer number (4111377955).

Almost surely, 2^8222755909 is an apocalyptic number.

It is an amenable number.

8222755909 is a deficient number, since it is larger than the sum of its proper divisors (1).

8222755909 is an equidigital number, since it uses as much as digits as its factorization.

8222755909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 8222755909 is about 90679.4128179048. The cubic root of 8222755909 is about 2018.3933168052.

The spelling of 8222755909 in words is "eight billion, two hundred twenty-two million, seven hundred fifty-five thousand, nine hundred nine".