572845561 has 8 divisors (see below), whose sum is σ = 576567680. Its totient is φ = 569134512.

The previous prime is 572845543. The next prime is 572845597. The reversal of 572845561 is 165548275.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-572845561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (572845531) 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, 117376 + ... + 122158.

It is an arithmetic number, because the mean of its divisors is an integer number (72070960).

Almost surely, 2^572845561 is an apocalyptic number.

It is an amenable number.

572845561 is a deficient number, since it is larger than the sum of its proper divisors (3722119).

572845561 is a wasteful number, since it uses less digits than its factorization.

572845561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5535.

The product of its digits is 336000, while the sum is 43.

The square root of 572845561 is about 23934.1922988849. The cubic root of 572845561 is about 830.5118829176.

The spelling of 572845561 in words is "five hundred seventy-two million, eight hundred forty-five thousand, five hundred sixty-one".