80550 has 36 divisors (see below), whose sum is σ = 217620. Its totient is φ = 21360.

The previous prime is 80537. The next prime is 80557. The reversal of 80550 is 5508.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80557) by changing a digit.

80550 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 361 + ... + 539.

It is an arithmetic number, because the mean of its divisors is an integer number (6045).

2⁸⁰⁵⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108810).

80550 is an abundant number, since it is smaller than the sum of its proper divisors (137070).

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

80550 is a wasteful number, since it uses less digits than its factorization.

80550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 80550 is about 283.8133189264. The cubic root of 80550 is about 43.1872132938.

It can be divided in two parts, 80 and 550, that added together give a triangular number (630 = T₃₅).

The spelling of 80550 in words is "eighty thousand, five hundred fifty".