8253211709 has 2 divisors, whose sum is σ = 8253211710. Its totient is φ = 8253211708.

The previous prime is 8253211691. The next prime is 8253211717. The reversal of 8253211709 is 9071123528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5554720900 + 2698490809 = 74530^2 + 51947^2 .

It is a cyclic number.

It is not a de Polignac number, because 8253211709 - 2¹⁶ = 8253146173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8253211789) 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, 4126605854 + 4126605855.

It is an arithmetic number, because the mean of its divisors is an integer number (4126605855).

Almost surely, 2^8253211709 is an apocalyptic number.

It is an amenable number.

8253211709 is a deficient number, since it is larger than the sum of its proper divisors (1).

8253211709 is an equidigital number, since it uses as much as digits as its factorization.

8253211709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 8253211709 is about 90847.1887787399. The cubic root of 8253211709 is about 2020.8821841099.

The spelling of 8253211709 in words is "eight billion, two hundred fifty-three million, two hundred eleven thousand, seven hundred nine".