575244221 has 4 divisors (see below), whose sum is σ = 576010944. Its totient is φ = 574477500.

The previous prime is 575244193. The next prime is 575244269. The reversal of 575244221 is 122442575.

575244221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 575244221 - 2⁶ = 575244157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (575244821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382235 + ... + 383736.

It is an arithmetic number, because the mean of its divisors is an integer number (144002736).

Almost surely, 2^575244221 is an apocalyptic number.

It is an amenable number.

575244221 is a deficient number, since it is larger than the sum of its proper divisors (766723).

575244221 is an equidigital number, since it uses as much as digits as its factorization.

575244221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766722.

The product of its digits is 22400, while the sum is 32.

The square root of 575244221 is about 23984.2494358277. The cubic root of 575244221 is about 831.6694616840.

Adding to 575244221 its reverse (122442575), we get a palindrome (697686796).

The spelling of 575244221 in words is "five hundred seventy-five million, two hundred forty-four thousand, two hundred twenty-one".