551455 is nontrivially palindromic in base 15.
551455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
2551455 is an apocalyptic number.
551455 is a wasteful number, since it uses less digits than its factorization.
551455 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 110296.
The square root of 551455 is about 742.6001615944. The cubic root of 551455 is about 82.0043126822.
The spelling of 551455 in words is "five hundred fifty-one thousand, four hundred fifty-five".