805566059 has 2 divisors, whose sum is σ = 805566060. Its totient is φ = 805566058.

The previous prime is 805566043. The next prime is 805566103. The reversal of 805566059 is 950665508.

805566059 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (805566103) can be obtained adding 805566059 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 805566059 - 2⁴ = 805566043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (805566659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402783029 + 402783030.

It is an arithmetic number, because the mean of its divisors is an integer number (402783030).

Almost surely, 2^805566059 is an apocalyptic number.

805566059 is a deficient number, since it is larger than the sum of its proper divisors (1).

805566059 is an equidigital number, since it uses as much as digits as its factorization.

805566059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 44.

The square root of 805566059 is about 28382.4956443228. The cubic root of 805566059 is about 930.4657392806.

The spelling of 805566059 in words is "eight hundred five million, five hundred sixty-six thousand, fifty-nine".