2500517668 has 24 divisors (see below), whose sum is σ = 4818338784. Its totient is φ = 1125974400.

The previous prime is 2500517659. The next prime is 2500517707. The reversal of 2500517668 is 8667150052.

It is a self number, because there is not a number n which added to its sum of digits gives 2500517668.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260853 + ... + 270268.

It is an arithmetic number, because the mean of its divisors is an integer number (200764116).

Almost surely, 2^2500517668 is an apocalyptic number.

It is an amenable number.

2500517668 is a deficient number, since it is larger than the sum of its proper divisors (2317821116).

2500517668 is a wasteful number, since it uses less digits than its factorization.

2500517668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531243 (or 531241 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 2500517668 is about 50005.1764120476. The cubic root of 2500517668 is about 1357.3024796416.

The spelling of 2500517668 in words is "two billion, five hundred million, five hundred seventeen thousand, six hundred sixty-eight".