6530515 has 4 divisors (see below), whose sum is σ = 7836624. Its totient is φ = 5224408.

The previous prime is 6530483. The next prime is 6530519. The reversal of 6530515 is 5150356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6530515 - 2⁵ = 6530483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6530515.

It is not an unprimeable number, because it can be changed into a prime (6530519) 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 3 ways as a sum of consecutive naturals, for example, 653047 + ... + 653056.

It is an arithmetic number, because the mean of its divisors is an integer number (1959156).

Almost surely, 2^6530515 is an apocalyptic number.

6530515 is a deficient number, since it is larger than the sum of its proper divisors (1306109).

6530515 is a wasteful number, since it uses less digits than its factorization.

6530515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306108.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 6530515 is about 2555.4872333862. The cubic root of 6530515 is about 186.9171470877.

The spelling of 6530515 in words is "six million, five hundred thirty thousand, five hundred fifteen".