2561952908 has 12 divisors (see below), whose sum is σ = 4556916672. Its totient is φ = 1259976720.

The previous prime is 2561952907. The next prime is 2561952919. The reversal of 2561952908 is 8092591652.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2561952907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5249660 + ... + 5250147.

It is an arithmetic number, because the mean of its divisors is an integer number (379743056).

Almost surely, 2^2561952908 is an apocalyptic number.

It is an amenable number.

2561952908 is a deficient number, since it is larger than the sum of its proper divisors (1994963764).

2561952908 is a wasteful number, since it uses less digits than its factorization.

2561952908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10499872 (or 10499870 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 2561952908 is about 50615.7377502294. The cubic root of 2561952908 is about 1368.3285257685.

The spelling of 2561952908 in words is "two billion, five hundred sixty-one million, nine hundred fifty-two thousand, nine hundred eight".