550869 has 8 divisors (see below), whose sum is σ = 801312. Its totient is φ = 333840.

The previous prime is 550861. The next prime is 550903. The reversal of 550869 is 968055.

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

It is not a de Polignac number, because 550869 - 2³ = 550861 is a prime.

It is a super-2 number, since 2×550869² = 606913310322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 16693 = 550869 / (5 + 5 + 0 + 8 + 6 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8314 + ... + 8379.

It is an arithmetic number, because the mean of its divisors is an integer number (100164).

2⁵⁵⁰⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

550869 is a deficient number, since it is larger than the sum of its proper divisors (250443).

550869 is a wasteful number, since it uses less digits than its factorization.

550869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16707.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 550869 is about 742.2054971502. The cubic root of 550869 is about 81.9752552741.

The spelling of 550869 in words is "five hundred fifty thousand, eight hundred sixty-nine".