8509125263 has 2 divisors, whose sum is σ = 8509125264. Its totient is φ = 8509125262.

The previous prime is 8509125259. The next prime is 8509125271. The reversal of 8509125263 is 3625219058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8509125263 - 2² = 8509125259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8509125263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8509125253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4254562631 + 4254562632.

It is an arithmetic number, because the mean of its divisors is an integer number (4254562632).

Almost surely, 2^8509125263 is an apocalyptic number.

8509125263 is a deficient number, since it is larger than the sum of its proper divisors (1).

8509125263 is an equidigital number, since it uses as much as digits as its factorization.

8509125263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 8509125263 is about 92244.9199847883. The cubic root of 8509125263 is about 2041.5576069499.

The spelling of 8509125263 in words is "eight billion, five hundred nine million, one hundred twenty-five thousand, two hundred sixty-three".