85305063 has 4 divisors (see below), whose sum is σ = 113740088. Its totient is φ = 56870040.

The previous prime is 85305053. The next prime is 85305067. The reversal of 85305063 is 36050358.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 85305063 - 2⁹ = 85304551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85305063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85305067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14217508 + ... + 14217513.

It is an arithmetic number, because the mean of its divisors is an integer number (28435022).

Almost surely, 2^85305063 is an apocalyptic number.

85305063 is a deficient number, since it is larger than the sum of its proper divisors (28435025).

85305063 is a wasteful number, since it uses less digits than its factorization.

85305063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28435024.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 85305063 is about 9236.0740036013. The cubic root of 85305063 is about 440.2083431369.

The spelling of 85305063 in words is "eighty-five million, three hundred five thousand, sixty-three".