85197252 has 48 divisors (see below), whose sum is σ = 229340160. Its totient is φ = 24112032.

The previous prime is 85197227. The next prime is 85197257. The reversal of 85197252 is 25279158.

It is a self number, because there is not a number n which added to its sum of digits gives 85197252.

It is not an unprimeable number, because it can be changed into a prime (85197257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4249 + ... + 13727.

It is an arithmetic number, because the mean of its divisors is an integer number (4777920).

Almost surely, 2^85197252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85197252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114670080).

85197252 is an abundant number, since it is smaller than the sum of its proper divisors (144142908).

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

85197252 is a wasteful number, since it uses less digits than its factorization.

85197252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9600 (or 9598 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 85197252 is about 9230.2357499687. The cubic root of 85197252 is about 440.0228156213.

The spelling of 85197252 in words is "eighty-five million, one hundred ninety-seven thousand, two hundred fifty-two".