6505513 has 8 divisors (see below), whose sum is σ = 7608128. Its totient is φ = 5446224.

The previous prime is 6505507. The next prime is 6505519. The reversal of 6505513 is 3155056.

It is an interprime number because it is at equal distance from previous prime (6505507) and next prime (6505519).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-6505513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6505519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10506 + ... + 11107.

It is an arithmetic number, because the mean of its divisors is an integer number (951016).

Almost surely, 2^6505513 is an apocalyptic number.

It is an amenable number.

6505513 is a deficient number, since it is larger than the sum of its proper divisors (1102615).

6505513 is a wasteful number, since it uses less digits than its factorization.

6505513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21663.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 6505513 is about 2550.5907158931. The cubic root of 6505513 is about 186.6783053259.

The spelling of 6505513 in words is "six million, five hundred five thousand, five hundred thirteen".