6535513513 has 8 divisors (see below), whose sum is σ = 6681445632. Its totient is φ = 6389868096.

The previous prime is 6535513511. The next prime is 6535513547. The reversal of 6535513513 is 3153155356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6535513513 - 2¹ = 6535513511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6535513511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25245 + ... + 117082.

It is an arithmetic number, because the mean of its divisors is an integer number (835180704).

Almost surely, 2^6535513513 is an apocalyptic number.

It is an amenable number.

6535513513 is a deficient number, since it is larger than the sum of its proper divisors (145932119).

6535513513 is a wasteful number, since it uses less digits than its factorization.

6535513513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143351.

The product of its digits is 101250, while the sum is 37.

The square root of 6535513513 is about 80842.5229257474. The cubic root of 6535513513 is about 1869.6482426244.

Adding to 6535513513 its reverse (3153155356), we get a palindrome (9688668869).

The spelling of 6535513513 in words is "six billion, five hundred thirty-five million, five hundred thirteen thousand, five hundred thirteen".