2681565256 has 16 divisors (see below), whose sum is σ = 5091580800. Its totient is φ = 1323810384.

The previous prime is 2681565241. The next prime is 2681565287. The reversal of 2681565256 is 6525651862.

2681565256 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, 2120860 + ... + 2122123.

It is an arithmetic number, because the mean of its divisors is an integer number (318223800).

Almost surely, 2^2681565256 is an apocalyptic number.

It is an amenable number.

2681565256 is a deficient number, since it is larger than the sum of its proper divisors (2410015544).

2681565256 is a wasteful number, since it uses less digits than its factorization.

2681565256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243068 (or 4243064 counting only the distinct ones).

The product of its digits is 864000, while the sum is 46.

The square root of 2681565256 is about 51783.8319941659. The cubic root of 2681565256 is about 1389.3002802958.

The spelling of 2681565256 in words is "two billion, six hundred eighty-one million, five hundred sixty-five thousand, two hundred fifty-six".