550396 has 24 divisors (see below), whose sum is σ = 1201536. Its totient is φ = 214320.

The previous prime is 550379. The next prime is 550427. The reversal of 550396 is 693055.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

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, 586 + ... + 1201.

It is an arithmetic number, because the mean of its divisors is an integer number (50064).

2⁵⁵⁰³⁹⁶ is an apocalyptic number.

It is an amenable number.

550396 is an abundant number, since it is smaller than the sum of its proper divisors (651140).

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

550396 is a wasteful number, since it uses less digits than its factorization.

550396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809 (or 1807 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 550396 is about 741.8867838154. The cubic root of 550396 is about 81.9517860532.

It can be divided in two parts, 550 and 396, that added together give a triangular number (946 = T₄₃).

The spelling of 550396 in words is "five hundred fifty thousand, three hundred ninety-six".