85803559559 has 2 divisors, whose sum is σ = 85803559560. Its totient is φ = 85803559558.

The previous prime is 85803559537. The next prime is 85803559579. The reversal of 85803559559 is 95595530858.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85803559559 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85803559579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42901779779 + 42901779780.

It is an arithmetic number, because the mean of its divisors is an integer number (42901779780).

Almost surely, 2^85803559559 is an apocalyptic number.

85803559559 is a deficient number, since it is larger than the sum of its proper divisors (1).

85803559559 is an equidigital number, since it uses as much as digits as its factorization.

85803559559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600000, while the sum is 62.

The spelling of 85803559559 in words is "eighty-five billion, eight hundred three million, five hundred fifty-nine thousand, five hundred fifty-nine".