85311063 has 20 divisors (see below), whose sum is σ = 130157280. Its totient is φ = 55661472.

The previous prime is 85311059. The next prime is 85311067. The reversal of 85311063 is 36011358.

It is an interprime number because it is at equal distance from previous prime (85311059) and next prime (85311067).

It is not a de Polignac number, because 85311063 - 2² = 85311059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85311067) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7398 + ... + 15011.

It is an arithmetic number, because the mean of its divisors is an integer number (6507864).

Almost surely, 2^85311063 is an apocalyptic number.

85311063 is a deficient number, since it is larger than the sum of its proper divisors (44846217).

85311063 is a wasteful number, since it uses less digits than its factorization.

85311063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22468 (or 22459 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 85311063 is about 9236.3988112251. The cubic root of 85311063 is about 440.2186636972.

The spelling of 85311063 in words is "eighty-five million, three hundred eleven thousand, sixty-three".