805566103 has 2 divisors, whose sum is σ = 805566104. Its totient is φ = 805566102.

The previous prime is 805566059. The next prime is 805566143. The reversal of 805566103 is 301665508.

805566103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 805566103 - 2²¹ = 803468951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (805566143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402783051 + 402783052.

It is an arithmetic number, because the mean of its divisors is an integer number (402783052).

Almost surely, 2^805566103 is an apocalyptic number.

805566103 is a deficient number, since it is larger than the sum of its proper divisors (1).

805566103 is an equidigital number, since it uses as much as digits as its factorization.

805566103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 805566103 is about 28382.4964194484. The cubic root of 805566103 is about 930.4657562213.

The spelling of 805566103 in words is "eight hundred five million, five hundred sixty-six thousand, one hundred three".