6515713 has 4 divisors (see below), whose sum is σ = 6520900. Its totient is φ = 6510528.

The previous prime is 6515711. The next prime is 6515723. The reversal of 6515713 is 3175156.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 478864 + 6036849 = 692^2 + 2457^2 .

It is a cyclic number.

It is not a de Polignac number, because 6515713 - 2¹ = 6515711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6515711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613 + ... + 3661.

It is an arithmetic number, because the mean of its divisors is an integer number (1630225).

Almost surely, 2^6515713 is an apocalyptic number.

It is an amenable number.

6515713 is a deficient number, since it is larger than the sum of its proper divisors (5187).

6515713 is a wasteful number, since it uses less digits than its factorization.

6515713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5186.

The product of its digits is 3150, while the sum is 28.

The square root of 6515713 is about 2552.5894695387. The cubic root of 6515713 is about 186.7758187438.

The spelling of 6515713 in words is "six million, five hundred fifteen thousand, seven hundred thirteen".