550949 has 4 divisors (see below), whose sum is σ = 629664. Its totient is φ = 472236.

The previous prime is 550939. The next prime is 550951. The reversal of 550949 is 949055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550909) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 39347 + ... + 39360.

It is an arithmetic number, because the mean of its divisors is an integer number (157416).

2⁵⁵⁰⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

550949 is a deficient number, since it is larger than the sum of its proper divisors (78715).

550949 is an equidigital number, since it uses as much as digits as its factorization.

550949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78714.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 550949 is about 742.2593886237. The cubic root of 550949 is about 81.9792233699.

The spelling of 550949 in words is "five hundred fifty thousand, nine hundred forty-nine".