550872 has 48 divisors (see below), whose sum is σ = 1706640. Its totient is φ = 157248.

The previous prime is 550861. The next prime is 550903. The reversal of 550872 is 278055.

It is a happy number.

550872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43 + ... + 1050.

It is an arithmetic number, because the mean of its divisors is an integer number (35555).

2⁵⁵⁰⁸⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853320).

550872 is an abundant number, since it is smaller than the sum of its proper divisors (1155768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550872 is a wasteful number, since it uses less digits than its factorization.

550872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 550872 is about 742.2075181511. The cubic root of 550872 is about 81.9754040846.

The spelling of 550872 in words is "five hundred fifty thousand, eight hundred seventy-two".