2525586665 has 24 divisors (see below), whose sum is σ = 3568017600. Its totient is φ = 1710951648.

The previous prime is 2525586659. The next prime is 2525586667. The reversal of 2525586665 is 5666855252.

It is a happy number.

It is not a de Polignac number, because 2525586665 - 2⁴ = 2525586649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2525586667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41765 + ... + 82434.

It is an arithmetic number, because the mean of its divisors is an integer number (148667400).

Almost surely, 2^2525586665 is an apocalyptic number.

It is an amenable number.

2525586665 is a deficient number, since it is larger than the sum of its proper divisors (1042430935).

2525586665 is a wasteful number, since it uses less digits than its factorization.

2525586665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124301 (or 124294 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 50.

The square root of 2525586665 is about 50255.2153014988. The cubic root of 2525586665 is about 1361.8232942939.

The spelling of 2525586665 in words is "two billion, five hundred twenty-five million, five hundred eighty-six thousand, six hundred sixty-five".