551229 has 8 divisors (see below), whose sum is σ = 840000. Its totient is φ = 314976.

The previous prime is 551219. The next prime is 551231. The reversal of 551229 is 922155.

551229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 551229 - 2⁵ = 551197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551199 and 551208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13104 + ... + 13145.

It is an arithmetic number, because the mean of its divisors is an integer number (105000).

2⁵⁵¹²²⁹ is an apocalyptic number.

It is an amenable number.

551229 is a deficient number, since it is larger than the sum of its proper divisors (288771).

551229 is a wasteful number, since it uses less digits than its factorization.

551229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26259.

The product of its digits is 900, while the sum is 24.

The square root of 551229 is about 742.4479779756. The cubic root of 551229 is about 81.9931086812.

It can be divided in two parts, 551 and 229, that added together give a triangular number (780 = T₃₉).

The spelling of 551229 in words is "five hundred fifty-one thousand, two hundred twenty-nine".