6509385 has 48 divisors (see below), whose sum is σ = 12220416. Its totient is φ = 3193344.

The previous prime is 6509357. The next prime is 6509387. The reversal of 6509385 is 5839056.

It is not a de Polignac number, because 6509385 - 2⁷ = 6509257 is a prime.

6509385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6509387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51192 + ... + 51318.

It is an arithmetic number, because the mean of its divisors is an integer number (254592).

Almost surely, 2^6509385 is an apocalyptic number.

It is an amenable number.

6509385 is a deficient number, since it is larger than the sum of its proper divisors (5711031).

6509385 is a wasteful number, since it uses less digits than its factorization.

6509385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 6509385 is about 2551.3496428361. The cubic root of 6509385 is about 186.7153341783.

The spelling of 6509385 in words is "six million, five hundred nine thousand, three hundred eighty-five".