85255188 has 12 divisors (see below), whose sum is σ = 198928800. Its totient is φ = 28418392.

The previous prime is 85255171. The next prime is 85255199. The reversal of 85255188 is 88155258.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3552288 + ... + 3552311.

It is an arithmetic number, because the mean of its divisors is an integer number (16577400).

Almost surely, 2^85255188 is an apocalyptic number.

It is an amenable number.

85255188 is an abundant number, since it is smaller than the sum of its proper divisors (113673612).

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

85255188 is a wasteful number, since it uses less digits than its factorization.

85255188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7104606 (or 7104604 counting only the distinct ones).

The product of its digits is 128000, while the sum is 42.

The square root of 85255188 is about 9233.3735979868. The cubic root of 85255188 is about 440.1225347429.

The spelling of 85255188 in words is "eighty-five million, two hundred fifty-five thousand, one hundred eighty-eight".