85250286 has 32 divisors (see below), whose sum is σ = 206668800. Its totient is φ = 25833240.

The previous prime is 85250281. The next prime is 85250287. The reversal of 85250286 is 68205258.

It is a super-2 number, since 2×85250286² = 14535222526163592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85250286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85250281) 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 15 ways as a sum of consecutive naturals, for example, 71166 + ... + 72353.

It is an arithmetic number, because the mean of its divisors is an integer number (6458400).

Almost surely, 2^85250286 is an apocalyptic number.

85250286 is an abundant number, since it is smaller than the sum of its proper divisors (121418514).

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

85250286 is a wasteful number, since it uses less digits than its factorization.

85250286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143541 (or 143535 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 85250286 is about 9233.1081440650. The cubic root of 85250286 is about 440.1140991975.

The spelling of 85250286 in words is "eighty-five million, two hundred fifty thousand, two hundred eighty-six".