575021 has 4 divisors (see below), whose sum is σ = 582972. Its totient is φ = 567072.

The previous prime is 575009. The next prime is 575027. The reversal of 575021 is 120575.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 198025 + 376996 = 445^2 + 614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-575021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 574984 and 575002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (575027) 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, 3866 + ... + 4011.

It is an arithmetic number, because the mean of its divisors is an integer number (145743).

2⁵⁷⁵⁰²¹ is an apocalyptic number.

It is an amenable number.

575021 is a deficient number, since it is larger than the sum of its proper divisors (7951).

575021 is an equidigital number, since it uses as much as digits as its factorization.

575021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7950.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 575021 is about 758.3013912687. The cubic root of 575021 is about 83.1561872536.

Adding to 575021 its reverse (120575), we get a palindrome (695596).

The spelling of 575021 in words is "five hundred seventy-five thousand, twenty-one".