550636 has 6 divisors (see below), whose sum is σ = 963620. Its totient is φ = 275316.

The previous prime is 550631. The next prime is 550637. The reversal of 550636 is 636055.

550636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 550636.

It is not an unprimeable number, because it can be changed into a prime (550631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68826 + ... + 68833.

2⁵⁵⁰⁶³⁶ is an apocalyptic number.

It is an amenable number.

550636 is a deficient number, since it is larger than the sum of its proper divisors (412984).

550636 is a wasteful number, since it uses less digits than its factorization.

550636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137663 (or 137661 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 550636 is about 742.0485159341. The cubic root of 550636 is about 81.9636960056.

The spelling of 550636 in words is "five hundred fifty thousand, six hundred thirty-six".