550785 has 16 divisors (see below), whose sum is σ = 895104. Its totient is φ = 289152.

The previous prime is 550763. The next prime is 550789. The reversal of 550785 is 587055.

It is a happy number.

It is not a de Polignac number, because 550785 - 2⁶ = 550721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 844 + ... + 1346.

It is an arithmetic number, because the mean of its divisors is an integer number (55944).

2⁵⁵⁰⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

550785 is a deficient number, since it is larger than the sum of its proper divisors (344319).

550785 is a wasteful number, since it uses less digits than its factorization.

550785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584.

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 550785 is about 742.1489068913. The cubic root of 550785 is about 81.9710883600.

The spelling of 550785 in words is "five hundred fifty thousand, seven hundred eighty-five".