2542542243 has 8 divisors (see below), whose sum is σ = 3402947328. Its totient is φ = 1688582664.

The previous prime is 2542542203. The next prime is 2542542263. The reversal of 2542542243 is 3422452452.

2542542243 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2542542243 - 2⁹ = 2542541731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2542542203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1610455 + ... + 1612032.

It is an arithmetic number, because the mean of its divisors is an integer number (425368416).

Almost surely, 2^2542542243 is an apocalyptic number.

2542542243 is a deficient number, since it is larger than the sum of its proper divisors (860405085).

2542542243 is a wasteful number, since it uses less digits than its factorization.

2542542243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222753.

The product of its digits is 76800, while the sum is 33.

The square root of 2542542243 is about 50423.6278246617. The cubic root of 2542542243 is about 1364.8640425980.

Adding to 2542542243 its reverse (3422452452), we get a palindrome (5964994695).

The spelling of 2542542243 in words is "two billion, five hundred forty-two million, five hundred forty-two thousand, two hundred forty-three".