551204 has 12 divisors (see below), whose sum is σ = 988428. Its totient is φ = 268800.

The previous prime is 551197. The next prime is 551207. The reversal of 551204 is 402155.

It can be written as a sum of positive squares in 2 ways, for example, as 193600 + 357604 = 440^2 + 598^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1517 + ... + 1844.

It is an arithmetic number, because the mean of its divisors is an integer number (82369).

2⁵⁵¹²⁰⁴ is an apocalyptic number.

It is an amenable number.

551204 is a deficient number, since it is larger than the sum of its proper divisors (437224).

551204 is a wasteful number, since it uses less digits than its factorization.

551204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406 (or 3404 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 551204 is about 742.4311415882. The cubic root of 551204 is about 81.9918691125.

Adding to 551204 its reverse (402155), we get a palindrome (953359).

The spelling of 551204 in words is "five hundred fifty-one thousand, two hundred four".