6530509715 has 8 divisors (see below), whose sum is σ = 8177334048. Its totient is φ = 4997259520.

The previous prime is 6530509663. The next prime is 6530509723. The reversal of 6530509715 is 5179050356.

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

It is not a de Polignac number, because 6530509715 - 2⁶ = 6530509651 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28393406 + ... + 28393635.

It is an arithmetic number, because the mean of its divisors is an integer number (1022166756).

Almost surely, 2^6530509715 is an apocalyptic number.

6530509715 is a deficient number, since it is larger than the sum of its proper divisors (1646824333).

6530509715 is a wasteful number, since it uses less digits than its factorization.

6530509715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56787069.

The product of its (nonzero) digits is 141750, while the sum is 41.

The square root of 6530509715 is about 80811.5691903084. The cubic root of 6530509715 is about 1869.1709666502.

The spelling of 6530509715 in words is "six billion, five hundred thirty million, five hundred nine thousand, seven hundred fifteen".