6559913 has 4 divisors (see below), whose sum is σ = 6571860. Its totient is φ = 6547968.

The previous prime is 6559907. The next prime is 6559939. The reversal of 6559913 is 3199556.

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 5583769 + 976144 = 2363^2 + 988^2 .

It is a cyclic number.

It is not a de Polignac number, because 6559913 - 2⁴ = 6559897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6559963) 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, 5108 + ... + 6261.

It is an arithmetic number, because the mean of its divisors is an integer number (1642965).

Almost surely, 2^6559913 is an apocalyptic number.

It is an amenable number.

6559913 is a deficient number, since it is larger than the sum of its proper divisors (11947).

6559913 is a wasteful number, since it uses less digits than its factorization.

6559913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11946.

The product of its digits is 36450, while the sum is 38.

The square root of 6559913 is about 2561.2327110202. The cubic root of 6559913 is about 187.1972049069.

The spelling of 6559913 in words is "six million, five hundred fifty-nine thousand, nine hundred thirteen".