550782 has 24 divisors (see below), whose sum is σ = 1227096. Its totient is φ = 178416.

The previous prime is 550763. The next prime is 550789. The reversal of 550782 is 287055.

It is a happy number.

It is a congruent number.

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

550782 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 11 ways as a sum of consecutive naturals, for example, 253 + ... + 1079.

It is an arithmetic number, because the mean of its divisors is an integer number (51129).

2⁵⁵⁰⁷⁸² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613548).

550782 is an abundant number, since it is smaller than the sum of its proper divisors (676314).

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

550782 is a wasteful number, since it uses less digits than its factorization.

550782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 869 counting only the distinct ones).

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

The square root of 550782 is about 742.1468857309. The cubic root of 550782 is about 81.9709395338.

The spelling of 550782 in words is "five hundred fifty thousand, seven hundred eighty-two".