85287252 has 12 divisors (see below), whose sum is σ = 199003616. Its totient is φ = 28429080.

The previous prime is 85287247. The next prime is 85287263. The reversal of 85287252 is 25278258.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 85287252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3553624 + ... + 3553647.

Almost surely, 2^85287252 is an apocalyptic number.

It is an amenable number.

85287252 is an abundant number, since it is smaller than the sum of its proper divisors (113716364).

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

85287252 is a wasteful number, since it uses less digits than its factorization.

85287252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7107278 (or 7107276 counting only the distinct ones).

The product of its digits is 89600, while the sum is 39.

The square root of 85287252 is about 9235.1097448812. The cubic root of 85287252 is about 440.1777037029.

The spelling of 85287252 in words is "eighty-five million, two hundred eighty-seven thousand, two hundred fifty-two".