2542040543 has 8 divisors (see below), whose sum is σ = 2967002112. Its totient is φ = 2132532216.

The previous prime is 2542040531. The next prime is 2542040561. The reversal of 2542040543 is 3450402452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2542040543 - 2²⁰ = 2540991967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542040513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3862955 + ... + 3863612.

It is an arithmetic number, because the mean of its divisors is an integer number (370875264).

Almost surely, 2^2542040543 is an apocalyptic number.

2542040543 is a deficient number, since it is larger than the sum of its proper divisors (424961569).

2542040543 is an equidigital number, since it uses as much as digits as its factorization.

2542040543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7726621.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 2542040543 is about 50418.6527289256. The cubic root of 2542040543 is about 1364.7742640393.

Adding to 2542040543 its reverse (3450402452), we get a palindrome (5992442995).

The spelling of 2542040543 in words is "two billion, five hundred forty-two million, forty thousand, five hundred forty-three".