2542531042 has 8 divisors (see below), whose sum is σ = 3821760000. Its totient is φ = 1268611044.

The previous prime is 2542531039. The next prime is 2542531049. The reversal of 2542531042 is 2401352452.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2542531042.

It is not an unprimeable number, because it can be changed into a prime (2542531049) 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, 1326042 + ... + 1327957.

It is an arithmetic number, because the mean of its divisors is an integer number (477720000).

Almost surely, 2^2542531042 is an apocalyptic number.

2542531042 is a deficient number, since it is larger than the sum of its proper divisors (1279228958).

2542531042 is a wasteful number, since it uses less digits than its factorization.

2542531042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654480.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2542531042 is about 50423.5167555775. The cubic root of 2542531042 is about 1364.8620383226.

Adding to 2542531042 its reverse (2401352452), we get a palindrome (4943883494).

The spelling of 2542531042 in words is "two billion, five hundred forty-two million, five hundred thirty-one thousand, forty-two".