550647 has 24 divisors (see below), whose sum is σ = 870480. Its totient is φ = 334080.

The previous prime is 550637. The next prime is 550651. The reversal of 550647 is 746055.

It is not a de Polignac number, because 550647 - 2⁴ = 550631 is a prime.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 550647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8997 + ... + 9057.

It is an arithmetic number, because the mean of its divisors is an integer number (36270).

2⁵⁵⁰⁶⁴⁷ is an apocalyptic number.

550647 is a deficient number, since it is larger than the sum of its proper divisors (319833).

550647 is a wasteful number, since it uses less digits than its factorization.

550647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 550647 is about 742.0559278114. The cubic root of 550647 is about 81.9642417955.

The spelling of 550647 in words is "five hundred fifty thousand, six hundred forty-seven".