80455 has 4 divisors (see below), whose sum is σ = 96552. Its totient is φ = 64360.
The previous prime is 80449. The next prime is 80471. The reversal of 80455 is 55408.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 80455 - 23 = 80447 is a prime.
It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8041 + ... + 8050.
It is an arithmetic number, because the mean of its divisors is an integer number (24138).
280455 is an apocalyptic number.
80455 is a deficient number, since it is larger than the sum of its proper divisors (16097).
80455 is a wasteful number, since it uses less digits than its factorization.
80455 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16096.
The product of its (nonzero) digits is 800, while the sum is 22.
The square root of 80455 is about 283.6459060166. The cubic root of 80455 is about 43.1702284014.
It can be divided in two parts, 80 and 455, that added together give a palindrome (535).
The spelling of 80455 in words is "eighty thousand, four hundred fifty-five".
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