85855241 has 2 divisors, whose sum is σ = 85855242. Its totient is φ = 85855240.

The previous prime is 85855199. The next prime is 85855261. The reversal of 85855241 is 14255858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54169600 + 31685641 = 7360^2 + 5629^2 .

It is a cyclic number.

It is not a de Polignac number, because 85855241 - 2²² = 81660937 is a prime.

It is a super-2 number, since 2×85855241² = 14742244814336162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85855195 and 85855204.

It is not a weakly prime, because it can be changed into another prime (85855261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42927620 + 42927621.

It is an arithmetic number, because the mean of its divisors is an integer number (42927621).

Almost surely, 2^85855241 is an apocalyptic number.

It is an amenable number.

85855241 is a deficient number, since it is larger than the sum of its proper divisors (1).

85855241 is an equidigital number, since it uses as much as digits as its factorization.

85855241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64000, while the sum is 38.

The square root of 85855241 is about 9265.8103261399. The cubic root of 85855241 is about 441.1526955495.

The spelling of 85855241 in words is "eighty-five million, eight hundred fifty-five thousand, two hundred forty-one".