2543540056 has 16 divisors (see below), whose sum is σ = 4777498440. Its totient is φ = 1269540480.

The previous prime is 2543540047. The next prime is 2543540057. The reversal of 2543540056 is 6500453452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543540057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273841 + ... + 282976.

Almost surely, 2^2543540056 is an apocalyptic number.

It is an amenable number.

2543540056 is a deficient number, since it is larger than the sum of its proper divisors (2233958384).

2543540056 is a wasteful number, since it uses less digits than its factorization.

2543540056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557394 (or 557390 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 2543540056 is about 50433.5211540896. The cubic root of 2543540056 is about 1365.0425648326.

The spelling of 2543540056 in words is "two billion, five hundred forty-three million, five hundred forty thousand, fifty-six".