505228 has 6 divisors (see below), whose sum is σ = 884156. Its totient is φ = 252612.

The previous prime is 505213. The next prime is 505231. The reversal of 505228 is 822505.

It is a junction number, because it is equal to n+sod(n) for n = 505199 and 505208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63150 + ... + 63157.

2⁵⁰⁵²²⁸ is an apocalyptic number.

It is an amenable number.

505228 is a deficient number, since it is larger than the sum of its proper divisors (378928).

505228 is a wasteful number, since it uses less digits than its factorization.

505228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126311 (or 126309 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 505228 is about 710.7939223150. The cubic root of 505228 is about 79.6457250987.

The spelling of 505228 in words is "five hundred five thousand, two hundred twenty-eight".