6530005 has 4 divisors (see below), whose sum is σ = 7836012. Its totient is φ = 5224000.

The previous prime is 6530003. The next prime is 6530011. The reversal of 6530005 is 5000356.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3122289 + 3407716 = 1767^2 + 1846^2 .

It is not a de Polignac number, because 6530005 - 2¹ = 6530003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6530003) 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, 652996 + ... + 653005.

It is an arithmetic number, because the mean of its divisors is an integer number (1959003).

Almost surely, 2^6530005 is an apocalyptic number.

It is an amenable number.

6530005 is a deficient number, since it is larger than the sum of its proper divisors (1306007).

6530005 is a wasteful number, since it uses less digits than its factorization.

6530005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306006.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 6530005 is about 2555.3874461615. The cubic root of 6530005 is about 186.9122812016.

The spelling of 6530005 in words is "six million, five hundred thirty thousand, five".