2509940656 has 20 divisors (see below), whose sum is σ = 5149069992. Its totient is φ = 1181148416.

The previous prime is 2509940627. The next prime is 2509940687. The reversal of 2509940656 is 6560499052.

2509940656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4613590 + ... + 4614133.

Almost surely, 2^2509940656 is an apocalyptic number.

It is an amenable number.

2509940656 is an abundant number, since it is smaller than the sum of its proper divisors (2639129336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2509940656 is a wasteful number, since it uses less digits than its factorization.

2509940656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9227748 (or 9227742 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 2509940656 is about 50099.3079393319. The cubic root of 2509940656 is about 1359.0053020715.

The spelling of 2509940656 in words is "two billion, five hundred nine million, nine hundred forty thousand, six hundred fifty-six".