8505223241 has 2 divisors, whose sum is σ = 8505223242. Its totient is φ = 8505223240.

The previous prime is 8505223219. The next prime is 8505223253. The reversal of 8505223241 is 1423225058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4813445641 + 3691777600 = 69379^2 + 60760^2 .

It is a cyclic number.

It is not a de Polignac number, because 8505223241 - 2²² = 8501028937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8505223198 and 8505223207.

It is not a weakly prime, because it can be changed into another prime (8505222241) 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, 4252611620 + 4252611621.

It is an arithmetic number, because the mean of its divisors is an integer number (4252611621).

Almost surely, 2^8505223241 is an apocalyptic number.

It is an amenable number.

8505223241 is a deficient number, since it is larger than the sum of its proper divisors (1).

8505223241 is an equidigital number, since it uses as much as digits as its factorization.

8505223241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 8505223241 is about 92223.7672240730. The cubic root of 8505223241 is about 2041.2454941515.

Adding to 8505223241 its reverse (1423225058), we get a palindrome (9928448299).

The spelling of 8505223241 in words is "eight billion, five hundred five million, two hundred twenty-three thousand, two hundred forty-one".