550907 has 6 divisors (see below), whose sum is σ = 640908. Its totient is φ = 472164.

The previous prime is 550903. The next prime is 550909. The reversal of 550907 is 709055.

It is not a de Polignac number, because 550907 - 2² = 550903 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5573 + ... + 5670.

It is an arithmetic number, because the mean of its divisors is an integer number (106818).

2⁵⁵⁰⁹⁰⁷ is an apocalyptic number.

550907 is a deficient number, since it is larger than the sum of its proper divisors (90001).

550907 is a wasteful number, since it uses less digits than its factorization.

550907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11257 (or 11250 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 26.

The square root of 550907 is about 742.2310960880. The cubic root of 550907 is about 81.9771401675.

The spelling of 550907 in words is "five hundred fifty thousand, nine hundred seven".