6503085529 has 2 divisors, whose sum is σ = 6503085530. Its totient is φ = 6503085528.

The previous prime is 6503085473. The next prime is 6503085587. The reversal of 6503085529 is 9255803056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5769921600 + 733163929 = 75960^2 + 27077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6503085529 is a prime.

It is not a weakly prime, because it can be changed into another prime (6503085629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3251542764 + 3251542765.

It is an arithmetic number, because the mean of its divisors is an integer number (3251542765).

Almost surely, 2^6503085529 is an apocalyptic number.

It is an amenable number.

6503085529 is a deficient number, since it is larger than the sum of its proper divisors (1).

6503085529 is an equidigital number, since it uses as much as digits as its factorization.

6503085529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 43.

The square root of 6503085529 is about 80641.7108511470. The cubic root of 6503085529 is about 1866.5508335259.

The spelling of 6503085529 in words is "six billion, five hundred three million, eighty-five thousand, five hundred twenty-nine".