2543424542 has 4 divisors (see below), whose sum is σ = 3815136816. Its totient is φ = 1271712270.

The previous prime is 2543424539. The next prime is 2543424547. The reversal of 2543424542 is 2454243452.

2543424542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543424547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635856134 + ... + 635856137.

It is an arithmetic number, because the mean of its divisors is an integer number (953784204).

Almost surely, 2^2543424542 is an apocalyptic number.

2543424542 is a deficient number, since it is larger than the sum of its proper divisors (1271712274).

2543424542 is a wasteful number, since it uses less digits than its factorization.

2543424542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271712273.

The product of its digits is 153600, while the sum is 35.

The square root of 2543424542 is about 50432.3759305468. The cubic root of 2543424542 is about 1365.0219002064.

Adding to 2543424542 its reverse (2454243452), we get a palindrome (4997667994).

The spelling of 2543424542 in words is "two billion, five hundred forty-three million, four hundred twenty-four thousand, five hundred forty-two".