85321252 has 6 divisors (see below), whose sum is σ = 149312198. Its totient is φ = 42660624.

The previous prime is 85321213. The next prime is 85321253. The reversal of 85321252 is 25212358.

It can be written as a sum of positive squares in only one way, i.e., 72318016 + 13003236 = 8504^2 + 3606^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85321252.

It is not an unprimeable number, because it can be changed into a prime (85321253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10665153 + ... + 10665160.

Almost surely, 2^85321252 is an apocalyptic number.

It is an amenable number.

85321252 is a deficient number, since it is larger than the sum of its proper divisors (63990946).

85321252 is a wasteful number, since it uses less digits than its factorization.

85321252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21330317 (or 21330315 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 85321252 is about 9236.9503625385. The cubic root of 85321252 is about 440.2361886201.

The spelling of 85321252 in words is "eighty-five million, three hundred twenty-one thousand, two hundred fifty-two".