85935559 has 2 divisors, whose sum is σ = 85935560. Its totient is φ = 85935558.

The previous prime is 85935523. The next prime is 85935569. The reversal of 85935559 is 95553958.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85935559 - 2⁷ = 85935431 is a prime.

It is equal to p_4994959 and since 85935559 and 4994959 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85935569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42967779 + 42967780.

It is an arithmetic number, because the mean of its divisors is an integer number (42967780).

Almost surely, 2^85935559 is an apocalyptic number.

85935559 is a deficient number, since it is larger than the sum of its proper divisors (1).

85935559 is an equidigital number, since it uses as much as digits as its factorization.

85935559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1215000, while the sum is 49.

The square root of 85935559 is about 9270.1434185238. The cubic root of 85935559 is about 441.2902195120.

The spelling of 85935559 in words is "eighty-five million, nine hundred thirty-five thousand, five hundred fifty-nine".