550004 has 24 divisors (see below), whose sum is σ = 1185408. Its totient is φ = 217440.

The previous prime is 549979. The next prime is 550007. The reversal of 550004 is 400055.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550007) by changing a digit.

550004 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392 + ... + 1119.

It is an arithmetic number, because the mean of its divisors is an integer number (49392).

2⁵⁵⁰⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

550004 is an abundant number, since it is smaller than the sum of its proper divisors (635404).

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

550004 is a wasteful number, since it uses less digits than its factorization.

550004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535 (or 1533 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 550004 is about 741.6225455041. The cubic root of 550004 is about 81.9323256829.

Adding to 550004 its reverse (400055), we get a palindrome (950059).

The spelling of 550004 in words is "five hundred fifty thousand, four".