85255885 has 64 divisors (see below), whose sum is σ = 127733760. Its totient is φ = 53786880.

The previous prime is 85255873. The next prime is 85255903. The reversal of 85255885 is 58855258.

It is not a de Polignac number, because 85255885 - 2⁷ = 85255757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1444986 + ... + 1445044.

It is an arithmetic number, because the mean of its divisors is an integer number (1995840).

Almost surely, 2^85255885 is an apocalyptic number.

It is an amenable number.

85255885 is a deficient number, since it is larger than the sum of its proper divisors (42477875).

85255885 is a wasteful number, since it uses less digits than its factorization.

85255885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178.

The product of its digits is 640000, while the sum is 46.

The square root of 85255885 is about 9233.4113414274. The cubic root of 85255885 is about 440.1237341404.

It can be divided in two parts, 85 and 255885, that added together give a triangular number (255970 = T₇₁₅).

The spelling of 85255885 in words is "eighty-five million, two hundred fifty-five thousand, eight hundred eighty-five".