575661 has 8 divisors (see below), whose sum is σ = 771264. Its totient is φ = 381920.

The previous prime is 575651. The next prime is 575669. The reversal of 575661 is 166575.

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

It is a cyclic number.

It is not a de Polignac number, because 575661 - 2¹⁴ = 559277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (575669) 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, 625 + ... + 1241.

It is an arithmetic number, because the mean of its divisors is an integer number (96408).

2⁵⁷⁵⁶⁶¹ is an apocalyptic number.

It is an amenable number.

575661 is a deficient number, since it is larger than the sum of its proper divisors (195603).

575661 is a wasteful number, since it uses less digits than its factorization.

575661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931.

The product of its digits is 6300, while the sum is 30.

The square root of 575661 is about 758.7232697104. The cubic root of 575661 is about 83.1870268388.

The spelling of 575661 in words is "five hundred seventy-five thousand, six hundred sixty-one".