550017729 has 16 divisors (see below), whose sum is σ = 830217600. Its totient is φ = 359759088.

The previous prime is 550017707. The next prime is 550017731. The reversal of 550017729 is 927710055.

It is not a de Polignac number, because 550017729 - 2²⁰ = 548969153 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 550017693 and 550017702.

It is not an unprimeable number, because it can be changed into a prime (550017229) 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 15 ways as a sum of consecutive naturals, for example, 190749 + ... + 193610.

It is an arithmetic number, because the mean of its divisors is an integer number (51888600).

Almost surely, 2^550017729 is an apocalyptic number.

It is an amenable number.

550017729 is a deficient number, since it is larger than the sum of its proper divisors (280199871).

550017729 is a wasteful number, since it uses less digits than its factorization.

550017729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384421 (or 384415 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 550017729 is about 23452.4567796212. The cubic root of 550017729 is about 819.3300739890.

The spelling of 550017729 in words is "five hundred fifty million, seventeen thousand, seven hundred twenty-nine".