6559081 has 2 divisors, whose sum is σ = 6559082. Its totient is φ = 6559080.

The previous prime is 6559079. The next prime is 6559109. The reversal of 6559081 is 1809556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6456681 + 102400 = 2541^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 6559081 - 2¹ = 6559079 is a prime.

It is a super-2 number, since 2×6559081² = 86043087129122, which contains 22 as substring.

Together with 6559079, it forms a pair of twin primes.

6559081 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6559001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3279540 + 3279541.

It is an arithmetic number, because the mean of its divisors is an integer number (3279541).

Almost surely, 2^6559081 is an apocalyptic number.

It is an amenable number.

6559081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6559081 is an equidigital number, since it uses as much as digits as its factorization.

6559081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 6559081 is about 2561.0702840805. The cubic root of 6559081 is about 187.1892904391.

The spelling of 6559081 in words is "six million, five hundred fifty-nine thousand, eighty-one".