2545112242 has 16 divisors (see below), whose sum is σ = 4009038912. Its totient is φ = 1209471120.

The previous prime is 2545112233. The next prime is 2545112243. The reversal of 2545112242 is 2422115452.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2545112242.

It is not an unprimeable number, because it can be changed into a prime (2545112243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168984 + ... + 183427.

It is an arithmetic number, because the mean of its divisors is an integer number (250564932).

Almost surely, 2^2545112242 is an apocalyptic number.

2545112242 is a deficient number, since it is larger than the sum of its proper divisors (1463926670).

2545112242 is a wasteful number, since it uses less digits than its factorization.

2545112242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352593.

The product of its digits is 6400, while the sum is 28.

The square root of 2545112242 is about 50449.1054628325. The cubic root of 2545112242 is about 1365.3237554488.

Adding to 2545112242 its reverse (2422115452), we get a palindrome (4967227694).

The spelling of 2545112242 in words is "two billion, five hundred forty-five million, one hundred twelve thousand, two hundred forty-two".