85455055171 has 2 divisors, whose sum is σ = 85455055172. Its totient is φ = 85455055170.

The previous prime is 85455055157. The next prime is 85455055181. The reversal of 85455055171 is 17155055458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85455055171 - 2¹⁵ = 85455022403 is a prime.

It is not a weakly prime, because it can be changed into another prime (85455055121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42727527585 + 42727527586.

It is an arithmetic number, because the mean of its divisors is an integer number (42727527586).

Almost surely, 2^85455055171 is an apocalyptic number.

85455055171 is a deficient number, since it is larger than the sum of its proper divisors (1).

85455055171 is an equidigital number, since it uses as much as digits as its factorization.

85455055171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 700000, while the sum is 46.

The spelling of 85455055171 in words is "eighty-five billion, four hundred fifty-five million, fifty-five thousand, one hundred seventy-one".