82289250 has 128 divisors (see below), whose sum is σ = 232727040. Its totient is φ = 21513600.

The previous prime is 82289237. The next prime is 82289267. The reversal of 82289250 is 5298228.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 492667 + ... + 492833.

It is an arithmetic number, because the mean of its divisors is an integer number (1818180).

Almost surely, 2^82289250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82289250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116363520).

82289250 is an abundant number, since it is smaller than the sum of its proper divisors (150437790).

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

82289250 is a wasteful number, since it uses less digits than its factorization.

82289250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 82289250 is about 9071.3422380594. The cubic root of 82289250 is about 434.9583788953.

The spelling of 82289250 in words is "eighty-two million, two hundred eighty-nine thousand, two hundred fifty".