2543556116 has 24 divisors (see below), whose sum is σ = 4761660456. Its totient is φ = 1184624640.

The previous prime is 2543556097. The next prime is 2543556137. The reversal of 2543556116 is 6116553452.

2543556116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1229203600 + 1314352516 = 35060^2 + 36254^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2543556116.

It is a congruent number.

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, 186215 + ... + 199406.

It is an arithmetic number, because the mean of its divisors is an integer number (198402519).

Almost surely, 2^2543556116 is an apocalyptic number.

It is an amenable number.

2543556116 is a deficient number, since it is larger than the sum of its proper divisors (2218104340).

2543556116 is a wasteful number, since it uses less digits than its factorization.

2543556116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385739 (or 385737 counting only the distinct ones).

The product of its digits is 108000, while the sum is 38.

The square root of 2543556116 is about 50433.6803733378. The cubic root of 2543556116 is about 1365.0454378019.

The spelling of 2543556116 in words is "two billion, five hundred forty-three million, five hundred fifty-six thousand, one hundred sixteen".