6513530 has 16 divisors (see below), whose sum is σ = 11767464. Its totient is φ = 2595840.

The previous prime is 6513497. The next prime is 6513553. The reversal of 6513530 is 353156.

It can be written as a sum of positive squares in 4 ways, for example, as 2660161 + 3853369 = 1631^2 + 1963^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6513496 and 6513505.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2090 + ... + 4170.

Almost surely, 2^6513530 is an apocalyptic number.

6513530 is a deficient number, since it is larger than the sum of its proper divisors (5253934).

6513530 is a wasteful number, since it uses less digits than its factorization.

6513530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 6513530 is about 2552.1618287248. The cubic root of 6513530 is about 186.7549575244.

Adding to 6513530 its reverse (353156), we get a palindrome (6866686).

The spelling of 6513530 in words is "six million, five hundred thirteen thousand, five hundred thirty".