575172221 has 8 divisors (see below), whose sum is σ = 619635744. Its totient is φ = 530740080.

The previous prime is 575172217. The next prime is 575172223. The reversal of 575172221 is 122271575.

575172221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 575172221 - 2² = 575172217 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (575172223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41990 + ... + 53976.

It is an arithmetic number, because the mean of its divisors is an integer number (77454468).

Almost surely, 2^575172221 is an apocalyptic number.

It is an amenable number.

575172221 is a deficient number, since it is larger than the sum of its proper divisors (44463523).

575172221 is a wasteful number, since it uses less digits than its factorization.

575172221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15691.

The product of its digits is 9800, while the sum is 32.

The square root of 575172221 is about 23982.7484038006. The cubic root of 575172221 is about 831.6347618136.

The spelling of 575172221 in words is "five hundred seventy-five million, one hundred seventy-two thousand, two hundred twenty-one".