85855452 has 48 divisors (see below), whose sum is σ = 213292800. Its totient is φ = 26801280.

The previous prime is 85855447. The next prime is 85855459. The reversal of 85855452 is 25455858.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85855459) 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, 18177 + ... + 22407.

It is an arithmetic number, because the mean of its divisors is an integer number (4443600).

Almost surely, 2^85855452 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 85855452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106646400).

85855452 is an abundant number, since it is smaller than the sum of its proper divisors (127437348).

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

85855452 is a wasteful number, since it uses less digits than its factorization.

85855452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346 (or 4344 counting only the distinct ones).

The product of its digits is 320000, while the sum is 42.

The square root of 85855452 is about 9265.8217120771. The cubic root of 85855452 is about 441.1530569452.

The spelling of 85855452 in words is "eighty-five million, eight hundred fifty-five thousand, four hundred fifty-two".