3125665587 has 12 divisors (see below), whose sum is σ = 4580865800. Its totient is φ = 1894342560.

The previous prime is 3125665519. The next prime is 3125665643. The reversal of 3125665587 is 7855665213.

It is not a de Polignac number, because 3125665587 - 2¹¹ = 3125663539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3125665087) 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, 4304962 + ... + 4305687.

Almost surely, 2^3125665587 is an apocalyptic number.

3125665587 is a deficient number, since it is larger than the sum of its proper divisors (1455200213).

3125665587 is a wasteful number, since it uses less digits than its factorization.

3125665587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8610674 (or 8610663 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 48.

The square root of 3125665587 is about 55907.6523116469. The cubic root of 3125665587 is about 1462.1126584419.

The spelling of 3125665587 in words is "three billion, one hundred twenty-five million, six hundred sixty-five thousand, five hundred eighty-seven".