575457521 has 4 divisors (see below), whose sum is σ = 578038272. Its totient is φ = 572876772.

The previous prime is 575457511. The next prime is 575457563. The reversal of 575457521 is 125754575.

It is a happy number.

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 575457521 - 2⁶ = 575457457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (575457511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1290041 + ... + 1290486.

It is an arithmetic number, because the mean of its divisors is an integer number (144509568).

Almost surely, 2^575457521 is an apocalyptic number.

It is an amenable number.

575457521 is a deficient number, since it is larger than the sum of its proper divisors (2580751).

575457521 is a wasteful number, since it uses less digits than its factorization.

575457521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580750.

The product of its digits is 245000, while the sum is 41.

The square root of 575457521 is about 23988.6956919296. The cubic root of 575457521 is about 831.7722430582.

The spelling of 575457521 in words is "five hundred seventy-five million, four hundred fifty-seven thousand, five hundred twenty-one".