455 is nontrivially palindromic in base 2, base 8 and base 9.
455 is an esthetic number in base 3, because in such base it adjacent digits differ by 1.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
455 is an undulating number in base 3 and base 8.
455 is a nontrivial repdigit in base 9.
It is a plaindrome in base 9, base 10 and base 14.
It is a nialpdrome in base 5 and base 9.
It is a zygodrome in base 2 and base 9.
It is a congruent number.
It is the 13-th tetrahedral number.
455 is a wasteful number, since it uses less digits than its factorization.
455 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25.
The square root of 455 is about 21.3307290077. The cubic root of 455 is about 7.6913716810.
The spelling of 455 in words is "four hundred fifty-five", and is thus an aban number.