550983 has 4 divisors (see below), whose sum is σ = 734648. Its totient is φ = 367320.

The previous prime is 550973. The next prime is 550993. The reversal of 550983 is 389055.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (550973) and next prime (550993).

It is not a de Polignac number, because 550983 - 2⁵ = 550951 is a prime.

It is a D-number.

It is a Duffinian number.

550983 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 550983.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 550983.

It is not an unprimeable number, because it can be changed into a prime (550903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91828 + ... + 91833.

It is an arithmetic number, because the mean of its divisors is an integer number (183662).

2⁵⁵⁰⁹⁸³ is an apocalyptic number.

550983 is a deficient number, since it is larger than the sum of its proper divisors (183665).

550983 is a wasteful number, since it uses less digits than its factorization.

550983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183664.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 550983 is about 742.2822913151. The cubic root of 550983 is about 81.9809096944.

The spelling of 550983 in words is "five hundred fifty thousand, nine hundred eighty-three".