85285252 has 24 divisors (see below), whose sum is σ = 161034776. Its totient is φ = 39287808.

The previous prime is 85285241. The next prime is 85285273. The reversal of 85285252 is 25258258.

It can be written as a sum of positive squares in 4 ways, for example, as 11737476 + 73547776 = 3426^2 + 8576^2 .

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 7 ways as a sum of consecutive naturals, for example, 33778 + ... + 36214.

Almost surely, 2^85285252 is an apocalyptic number.

It is an amenable number.

85285252 is a deficient number, since it is larger than the sum of its proper divisors (75749524).

85285252 is a wasteful number, since it uses less digits than its factorization.

85285252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127 (or 3125 counting only the distinct ones).

The product of its digits is 64000, while the sum is 37.

The square root of 85285252 is about 9235.0014618299. The cubic root of 85285252 is about 440.1742629296.

The spelling of 85285252 in words is "eighty-five million, two hundred eighty-five thousand, two hundred fifty-two".