85255842852 has 18 divisors (see below), whose sum is σ = 215507825078. Its totient is φ = 28418614272.

The previous prime is 85255842851. The next prime is 85255842899. The reversal of 85255842852 is 25824855258.

It is a happy number.

85255842852 is a `hidden beast` number, since 8 + 5 + 2 + 5 + 584 + 2 + 8 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 49180158756 + 36075684096 = 221766^2 + 189936^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (85255842851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1184108893 + ... + 1184108964.

Almost surely, 2^85255842852 is an apocalyptic number.

It is an amenable number.

85255842852 is an abundant number, since it is smaller than the sum of its proper divisors (130251982226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85255842852 is a wasteful number, since it uses less digits than its factorization.

85255842852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368217867 (or 2368217862 counting only the distinct ones).

The product of its digits is 10240000, while the sum is 54.

The spelling of 85255842852 in words is "eighty-five billion, two hundred fifty-five million, eight hundred forty-two thousand, eight hundred fifty-two".