85982550 has 48 divisors (see below), whose sum is σ = 216755472. Its totient is φ = 22550400.

The previous prime is 85982537. The next prime is 85982551. The reversal of 85982550 is 5528958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85982551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4452 + ... + 13848.

It is an arithmetic number, because the mean of its divisors is an integer number (4515739).

Almost surely, 2^85982550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85982550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108377736).

85982550 is an abundant number, since it is smaller than the sum of its proper divisors (130772922).

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

85982550 is a wasteful number, since it uses less digits than its factorization.

85982550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9473 (or 9468 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 42.

The square root of 85982550 is about 9272.6776068189. The cubic root of 85982550 is about 441.3706398114.

The spelling of 85982550 in words is "eighty-five million, nine hundred eighty-two thousand, five hundred fifty".