675566559 has 12 divisors (see below), whose sum is σ = 978541200. Its totient is φ = 449121024.

The previous prime is 675566537. The next prime is 675566569. The reversal of 675566559 is 955665576.

It is a happy number.

675566559 is a `hidden beast` number, since 6 + 75 + 566 + 5 + 5 + 9 = 666.

675566559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 675566559 - 2¹⁹ = 675042271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675566569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101314 + ... + 107775.

It is an arithmetic number, because the mean of its divisors is an integer number (81545100).

Almost surely, 2^675566559 is an apocalyptic number.

675566559 is a deficient number, since it is larger than the sum of its proper divisors (302974641).

675566559 is a wasteful number, since it uses less digits than its factorization.

675566559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209454 (or 209451 counting only the distinct ones).

The product of its digits is 8505000, while the sum is 54.

The square root of 675566559 is about 25991.6632595915. The cubic root of 675566559 is about 877.4506792841.

The spelling of 675566559 in words is "six hundred seventy-five million, five hundred sixty-six thousand, five hundred fifty-nine".