550445 has 8 divisors (see below), whose sum is σ = 754944. Its totient is φ = 377424.

The previous prime is 550441. The next prime is 550447. The reversal of 550445 is 544055.

550445 = 108² + 109² + ... + 142².

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 550445 - 2² = 550441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7829 + ... + 7898.

It is an arithmetic number, because the mean of its divisors is an integer number (94368).

2⁵⁵⁰⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

550445 is a deficient number, since it is larger than the sum of its proper divisors (204499).

550445 is a wasteful number, since it uses less digits than its factorization.

550445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15739.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 550445 is about 741.9198069873. The cubic root of 550445 is about 81.9542179497.

The spelling of 550445 in words is "five hundred fifty thousand, four hundred forty-five".