550225 has 12 divisors (see below), whose sum is σ = 735196. Its totient is φ = 406080.
The previous prime is 550213. The next prime is 550241. The reversal of 550225 is 522055.
It can be written as a sum of positive squares in 6 ways, for example, as 82369 + 467856 = 287^2 + 684^2 .
It is not a de Polignac number, because 550225 - 29 = 549713 is a prime.
It is a Duffinian number.
It is a nialpdrome in base 16.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522 + ... + 1171.
2550225 is an apocalyptic number.
It is an amenable number.
550225 is a deficient number, since it is larger than the sum of its proper divisors (184971).
550225 is a wasteful number, since it uses less digits than its factorization.
550225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1716 (or 1711 counting only the distinct ones).
The product of its (nonzero) digits is 500, while the sum is 19.
The square root of 550225 is about 741.7715281675. The cubic root of 550225 is about 81.9432980997.
Adding to 550225 its product of nonzero digits (500), we get a triangular number (550725 = T1049).
It can be divided in two parts, 5502 and 25, that multiplied together give a triangular number (137550 = T524).
The spelling of 550225 in words is "five hundred fifty thousand, two hundred twenty-five".
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