6509508853 has 2 divisors, whose sum is σ = 6509508854. Its totient is φ = 6509508852.

The previous prime is 6509508847. The next prime is 6509508899. The reversal of 6509508853 is 3588059056.

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., 4977725809 + 1531783044 = 70553^2 + 39138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6509508853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6509508797 and 6509508806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6509508823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3254754426 + 3254754427.

It is an arithmetic number, because the mean of its divisors is an integer number (3254754427).

Almost surely, 2^6509508853 is an apocalyptic number.

It is an amenable number.

6509508853 is a deficient number, since it is larger than the sum of its proper divisors (1).

6509508853 is an equidigital number, since it uses as much as digits as its factorization.

6509508853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296000, while the sum is 49.

The square root of 6509508853 is about 80681.5273343285. The cubic root of 6509508853 is about 1867.1651837144.

The spelling of 6509508853 in words is "six billion, five hundred nine million, five hundred eight thousand, eight hundred fifty-three".