80549 has 8 divisors (see below), whose sum is σ = 94848. Its totient is φ = 66960.
The previous prime is 80537. The next prime is 80557. The reversal of 80549 is 94508.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80549 - 216 = 15013 is a prime.
It is a Duffinian number.
It is a plaindrome in base 11 and base 15.
It is a zygodrome in base 11.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80599) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104 + ... + 414.
It is an arithmetic number, because the mean of its divisors is an integer number (11856).
280549 is an apocalyptic number.
It is an amenable number.
80549 is a deficient number, since it is larger than the sum of its proper divisors (14299).
80549 is a wasteful number, since it uses less digits than its factorization.
80549 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 355.
The product of its (nonzero) digits is 1440, while the sum is 26.
The square root of 80549 is about 283.8115571995. The cubic root of 80549 is about 43.1870345751.
The spelling of 80549 in words is "eighty thousand, five hundred forty-nine".
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