2543140556 has 12 divisors (see below), whose sum is σ = 4855086600. Its totient is φ = 1155972960.

The previous prime is 2543140553. The next prime is 2543140577. The reversal of 2543140556 is 6550413452.

It is not an unprimeable number, because it can be changed into a prime (2543140553) 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, 28899281 + ... + 28899368.

It is an arithmetic number, because the mean of its divisors is an integer number (404590550).

Almost surely, 2^2543140556 is an apocalyptic number.

It is an amenable number.

2543140556 is a deficient number, since it is larger than the sum of its proper divisors (2311946044).

2543140556 is a wasteful number, since it uses less digits than its factorization.

2543140556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57798664 (or 57798662 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 2543140556 is about 50429.5603391503. The cubic root of 2543140556 is about 1364.9710944873.

The spelling of 2543140556 in words is "two billion, five hundred forty-three million, one hundred forty thousand, five hundred fifty-six".