572583661 has 6 divisors (see below), whose sum is σ = 620016810. Its totient is φ = 528538608.

The previous prime is 572583631. The next prime is 572583679. The reversal of 572583661 is 166385275.

572583661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 79477225 + 493106436 = 8915^2 + 22206^2 .

It is not a de Polignac number, because 572583661 - 2²¹ = 570486509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572583631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1693866 + ... + 1694203.

It is an arithmetic number, because the mean of its divisors is an integer number (103336135).

Almost surely, 2^572583661 is an apocalyptic number.

It is an amenable number.

572583661 is a deficient number, since it is larger than the sum of its proper divisors (47433149).

572583661 is a wasteful number, since it uses less digits than its factorization.

572583661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3388095 (or 3388082 counting only the distinct ones).

The product of its digits is 302400, while the sum is 43.

The square root of 572583661 is about 23928.7204212845. The cubic root of 572583661 is about 830.3852960250.

The spelling of 572583661 in words is "five hundred seventy-two million, five hundred eighty-three thousand, six hundred sixty-one".