It is a plaindrome in base 15.
It is a congruent number.
254404 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 54404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
54404 is a wasteful number, since it uses less digits than its factorization.
54404 is an evil number, because the sum of its binary digits is even.
The square root of 54404 is about 233.2466505654. The cubic root of 54404 is about 37.8916581590.
Adding to 54404 its reverse (40445), we get a palindrome (94849).
The spelling of 54404 in words is "fifty-four thousand, four hundred four".