550956 has 36 divisors (see below), whose sum is σ = 1497048. Its totient is φ = 157248.

The previous prime is 550951. The next prime is 550961. The reversal of 550956 is 659055.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (550951) and next prime (550961).

It is not an unprimeable number, because it can be changed into a prime (550951) by changing a digit.

550956 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120 + ... + 1056.

2⁵⁵⁰⁹⁵⁶ 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 550956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748524).

550956 is an abundant number, since it is smaller than the sum of its proper divisors (946092).

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

550956 is a wasteful number, since it uses less digits than its factorization.

550956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 949 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 550956 is about 742.2641039414. The cubic root of 550956 is about 81.9795705601.

It can be divided in two parts, 5509 and 56, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 550956 in words is "five hundred fifty thousand, nine hundred fifty-six".