85255864 has 16 divisors (see below), whose sum is σ = 160288920. Its totient is φ = 42512160.

The previous prime is 85255861. The next prime is 85255873. The reversal of 85255864 is 46855258.

It is a super-4 number, since 4×85255864⁴ (a number of 33 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85255864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85255861) 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 in 3 ways as a sum of consecutive naturals, for example, 11302 + ... + 17269.

Almost surely, 2^85255864 is an apocalyptic number.

It is an amenable number.

85255864 is a deficient number, since it is larger than the sum of its proper divisors (75033056).

85255864 is a wasteful number, since it uses less digits than its factorization.

85255864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28950 (or 28946 counting only the distinct ones).

The product of its digits is 384000, while the sum is 43.

The square root of 85255864 is about 9233.4102042528. The cubic root of 85255864 is about 440.1236980037.

The spelling of 85255864 in words is "eighty-five million, two hundred fifty-five thousand, eight hundred sixty-four".