6516065 has 4 divisors (see below), whose sum is σ = 7819284. Its totient is φ = 5212848.

The previous prime is 6516047. The next prime is 6516073. The reversal of 6516065 is 5606156.

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 2122849 + 4393216 = 1457^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 6516065 - 2⁶ = 6516001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651602 + ... + 651611.

It is an arithmetic number, because the mean of its divisors is an integer number (1954821).

Almost surely, 2^6516065 is an apocalyptic number.

It is an amenable number.

6516065 is a deficient number, since it is larger than the sum of its proper divisors (1303219).

6516065 is a wasteful number, since it uses less digits than its factorization.

6516065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303218.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 6516065 is about 2552.6584181986. The cubic root of 6516065 is about 186.7791820956.

Subtracting from 6516065 its reverse (5606156), we obtain a palindrome (909909).

The spelling of 6516065 in words is "six million, five hundred sixteen thousand, sixty-five".