550839173 has 2 divisors, whose sum is σ = 550839174. Its totient is φ = 550839172.

The previous prime is 550839169. The next prime is 550839187. The reversal of 550839173 is 371938055.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 547887649 + 2951524 = 23407^2 + 1718^2 .

It is a cyclic number.

It is not a de Polignac number, because 550839173 - 2² = 550839169 is a prime.

It is a super-2 number, since 2×550839173² = 606847589022647858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 550839173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550859173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275419586 + 275419587.

It is an arithmetic number, because the mean of its divisors is an integer number (275419587).

Almost surely, 2^550839173 is an apocalyptic number.

It is an amenable number.

550839173 is a deficient number, since it is larger than the sum of its proper divisors (1).

550839173 is an equidigital number, since it uses as much as digits as its factorization.

550839173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 550839173 is about 23469.9632083222. The cubic root of 550839173 is about 819.7377572083.

The spelling of 550839173 in words is "five hundred fifty million, eight hundred thirty-nine thousand, one hundred seventy-three".