8528000809 has 2 divisors, whose sum is σ = 8528000810. Its totient is φ = 8528000808.

The previous prime is 8528000807. The next prime is 8528000837. The reversal of 8528000809 is 9080008258.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8527968409 + 32400 = 92347^2 + 180^2 .

It is a cyclic number.

It is not a de Polignac number, because 8528000809 - 2¹ = 8528000807 is a prime.

Together with 8528000807, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8528000807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4264000404 + 4264000405.

It is an arithmetic number, because the mean of its divisors is an integer number (4264000405).

Almost surely, 2^8528000809 is an apocalyptic number.

It is an amenable number.

8528000809 is a deficient number, since it is larger than the sum of its proper divisors (1).

8528000809 is an equidigital number, since it uses as much as digits as its factorization.

8528000809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 8528000809 is about 92347.1754251314. The cubic root of 8528000809 is about 2043.0660681341.

The spelling of 8528000809 in words is "eight billion, five hundred twenty-eight million, eight hundred nine", and thus it is an aban number.