575667561 has 32 divisors (see below), whose sum is σ = 896041728. Its totient is φ = 321960960.

The previous prime is 575667541. The next prime is 575667569. The reversal of 575667561 is 165766575.

It is not a de Polignac number, because 575667561 - 2¹¹ = 575665513 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 575667561.

It is not an unprimeable number, because it can be changed into a prime (575667569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208651 + ... + 211391.

It is an arithmetic number, because the mean of its divisors is an integer number (28001304).

Almost surely, 2^575667561 is an apocalyptic number.

It is an amenable number.

575667561 is a deficient number, since it is larger than the sum of its proper divisors (320374167).

575667561 is a wasteful number, since it uses less digits than its factorization.

575667561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961.

The product of its digits is 1323000, while the sum is 48.

The square root of 575667561 is about 23993.0731879015. The cubic root of 575667561 is about 831.8734287434.

The spelling of 575667561 in words is "five hundred seventy-five million, six hundred sixty-seven thousand, five hundred sixty-one".