575221 has 4 divisors (see below), whose sum is σ = 579744. Its totient is φ = 570700.

The previous prime is 575219. The next prime is 575231. The reversal of 575221 is 122575.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 575221 - 2¹ = 575219 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 575192 and 575201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (575231) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2065 + ... + 2326.

It is an arithmetic number, because the mean of its divisors is an integer number (144936).

2⁵⁷⁵²²¹ is an apocalyptic number.

It is an amenable number.

575221 is a deficient number, since it is larger than the sum of its proper divisors (4523).

575221 is a wasteful number, since it uses less digits than its factorization.

575221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522.

The product of its digits is 700, while the sum is 22.

The square root of 575221 is about 758.4332534904. The cubic root of 575221 is about 83.1658270810.

Adding to 575221 its reverse (122575), we get a palindrome (697796).

The spelling of 575221 in words is "five hundred seventy-five thousand, two hundred twenty-one".