6530511313 has 4 divisors (see below), whose sum is σ = 6566591668. Its totient is φ = 6494430960.

The previous prime is 6530511311. The next prime is 6530511331. The reversal of 6530511313 is 3131150356.

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 3350904769 + 3179606544 = 57887^2 + 56388^2 .

It is a cyclic number.

It is not a de Polignac number, because 6530511313 - 2¹ = 6530511311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6530511311) 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, 18039906 + ... + 18040267.

It is an arithmetic number, because the mean of its divisors is an integer number (1641647917).

Almost surely, 2^6530511313 is an apocalyptic number.

It is an amenable number.

6530511313 is a deficient number, since it is larger than the sum of its proper divisors (36080355).

6530511313 is a wasteful number, since it uses less digits than its factorization.

6530511313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36080354.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 6530511313 is about 80811.5790775060. The cubic root of 6530511313 is about 1869.1711191108.

Adding to 6530511313 its reverse (3131150356), we get a palindrome (9661661669).

The spelling of 6530511313 in words is "six billion, five hundred thirty million, five hundred eleven thousand, three hundred thirteen".