6605565325 has 6 divisors (see below), whose sum is σ = 8190901034. Its totient is φ = 5284452240.

The previous prime is 6605565259. The next prime is 6605565347. The reversal of 6605565325 is 5235655066.

It can be written as a sum of positive squares in 3 ways, for example, as 1202286276 + 5403279049 = 34674^2 + 73507^2 .

It is not a de Polignac number, because 6605565325 - 2²⁹ = 6068694413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132111282 + ... + 132111331.

Almost surely, 2^6605565325 is an apocalyptic number.

It is an amenable number.

6605565325 is a deficient number, since it is larger than the sum of its proper divisors (1585335709).

6605565325 is a wasteful number, since it uses less digits than its factorization.

6605565325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264222623 (or 264222618 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 43.

The square root of 6605565325 is about 81274.6290363727. The cubic root of 6605565325 is about 1876.3045451795.

The spelling of 6605565325 in words is "six billion, six hundred five million, five hundred sixty-five thousand, three hundred twenty-five".