550858 has 32 divisors (see below), whose sum is σ = 1065600. Its totient is φ = 211680.

The previous prime is 550843. The next prime is 550859. The reversal of 550858 is 858055.

It is a happy number.

550858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (550859) by changing a digit.

550858 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7510 + ... + 7582.

It is an arithmetic number, because the mean of its divisors is an integer number (33300).

2⁵⁵⁰⁸⁵⁸ is an apocalyptic number.

550858 is a deficient number, since it is larger than the sum of its proper divisors (514742).

550858 is a wasteful number, since it uses less digits than its factorization.

550858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 550858 is about 742.1980867666. The cubic root of 550858 is about 81.9747096309.

The spelling of 550858 in words is "five hundred fifty thousand, eight hundred fifty-eight".