56004 is nontrivially palindromic in base 11.
56004 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
256004 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 56004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
56004 is a wasteful number, since it uses less digits than its factorization.
56004 is an evil number, because the sum of its binary digits is even.
The square root of 56004 is about 236.6516427156. The cubic root of 56004 is about 38.2595345534.
Adding to 56004 its reverse (40065), we get a palindrome (96069).
The spelling of 56004 in words is "fifty-six thousand, four", and thus it is an eban number.