8005559 has 2 divisors, whose sum is σ = 8005560. Its totient is φ = 8005558.

The previous prime is 8005549. The next prime is 8005573. The reversal of 8005559 is 9555008.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8005559 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8005519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4002779 + 4002780.

It is an arithmetic number, because the mean of its divisors is an integer number (4002780).

Almost surely, 2^8005559 is an apocalyptic number.

8005559 is a deficient number, since it is larger than the sum of its proper divisors (1).

8005559 is an equidigital number, since it uses as much as digits as its factorization.

8005559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 8005559 is about 2829.4096557409. The cubic root of 8005559 is about 200.0463142741.

The spelling of 8005559 in words is "eight million, five thousand, five hundred fifty-nine".