85265447 has 2 divisors, whose sum is σ = 85265448. Its totient is φ = 85265446.

The previous prime is 85265441. The next prime is 85265449. The reversal of 85265447 is 74456258.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85265447 - 2¹⁰ = 85264423 is a prime.

Together with 85265449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85265441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42632723 + 42632724.

It is an arithmetic number, because the mean of its divisors is an integer number (42632724).

Almost surely, 2^85265447 is an apocalyptic number.

85265447 is a deficient number, since it is larger than the sum of its proper divisors (1).

85265447 is an equidigital number, since it uses as much as digits as its factorization.

85265447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 268800, while the sum is 41.

The square root of 85265447 is about 9233.9291203691. The cubic root of 85265447 is about 440.1401877682.

The spelling of 85265447 in words is "eighty-five million, two hundred sixty-five thousand, four hundred forty-seven".