85505227 has 2 divisors, whose sum is σ = 85505228. Its totient is φ = 85505226.

The previous prime is 85505221. The next prime is 85505239. The reversal of 85505227 is 72250558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85505227 - 2¹¹ = 85503179 is a prime.

It is a super-2 number, since 2×85505227² = 14622287688643058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85505192 and 85505201.

It is not a weakly prime, because it can be changed into another prime (85505221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42752613 + 42752614.

It is an arithmetic number, because the mean of its divisors is an integer number (42752614).

Almost surely, 2^85505227 is an apocalyptic number.

85505227 is a deficient number, since it is larger than the sum of its proper divisors (1).

85505227 is an equidigital number, since it uses as much as digits as its factorization.

85505227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 85505227 is about 9246.9036439232. The cubic root of 85505227 is about 440.5523830300.

The spelling of 85505227 in words is "eighty-five million, five hundred five thousand, two hundred twenty-seven".