545224 has 32 divisors (see below), whose sum is σ = 1144800. Its totient is φ = 241920.

The previous prime is 545213. The next prime is 545231. The reversal of 545224 is 422545.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 545195 and 545204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2479 + ... + 2689.

It is an arithmetic number, because the mean of its divisors is an integer number (35775).

2⁵⁴⁵²²⁴ is an apocalyptic number.

It is an amenable number.

545224 is an abundant number, since it is smaller than the sum of its proper divisors (599576).

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

545224 is a wasteful number, since it uses less digits than its factorization.

545224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 249 counting only the distinct ones).

The product of its digits is 1600, while the sum is 22.

The square root of 545224 is about 738.3928493695. The cubic root of 545224 is about 81.6942810036.

Adding to 545224 its reverse (422545), we get a palindrome (967769).

It can be divided in two parts, 5452 and 24, that added together give a square (5476 = 74²).

The spelling of 545224 in words is "five hundred forty-five thousand, two hundred twenty-four".