550504 has 8 divisors (see below), whose sum is σ = 1032210. Its totient is φ = 275248.

The previous prime is 550489. The next prime is 550513. The reversal of 550504 is 405055.

It is a happy number.

550504 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in only one way, i.e., 302500 + 248004 = 550^2 + 498^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34399 + ... + 34414.

2⁵⁵⁰⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

550504 is a deficient number, since it is larger than the sum of its proper divisors (481706).

550504 is a wasteful number, since it uses less digits than its factorization.

550504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68819 (or 68815 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 550504 is about 741.9595676316. The cubic root of 550504 is about 81.9571459601.

Adding to 550504 its reverse (405055), we get a palindrome (955559).

The spelling of 550504 in words is "five hundred fifty thousand, five hundred four".