550649 has 8 divisors (see below), whose sum is σ = 607392. Its totient is φ = 495040.

The previous prime is 550637. The next prime is 550651. The reversal of 550649 is 946055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550649 - 2¹⁶ = 485113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022 + ... + 1464.

It is an arithmetic number, because the mean of its divisors is an integer number (75924).

2⁵⁵⁰⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

550649 is a deficient number, since it is larger than the sum of its proper divisors (56743).

550649 is a wasteful number, since it uses less digits than its factorization.

550649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 550649 is about 742.0572754175. The cubic root of 550649 is about 81.9643410292.

It can be divided in two parts, 5506 and 49, that added together give a palindrome (5555).

The spelling of 550649 in words is "five hundred fifty thousand, six hundred forty-nine".