2543365256 has 8 divisors (see below), whose sum is σ = 4768809870. Its totient is φ = 1271682624.

The previous prime is 2543365249. The next prime is 2543365261. The reversal of 2543365256 is 6525633452.

It can be written as a sum of positive squares in only one way, i.e., 1891380100 + 651985156 = 43490^2 + 25534^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158960321 + ... + 158960336.

Almost surely, 2^2543365256 is an apocalyptic number.

It is an amenable number.

2543365256 is a deficient number, since it is larger than the sum of its proper divisors (2225444614).

2543365256 is a wasteful number, since it uses less digits than its factorization.

2543365256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317920663 (or 317920659 counting only the distinct ones).

The product of its digits is 648000, while the sum is 41.

The square root of 2543365256 is about 50431.7881499358. The cubic root of 2543365256 is about 1365.0112941231.

The spelling of 2543365256 in words is "two billion, five hundred forty-three million, three hundred sixty-five thousand, two hundred fifty-six".