2542422209 has 4 divisors (see below), whose sum is σ = 2555198400. Its totient is φ = 2529646020.

The previous prime is 2542422203. The next prime is 2542422217. The reversal of 2542422209 is 9022242452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2542422209 - 2¹⁶ = 2542356673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2542422203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6387797 + ... + 6388194.

It is an arithmetic number, because the mean of its divisors is an integer number (638799600).

Almost surely, 2^2542422209 is an apocalyptic number.

It is an amenable number.

2542422209 is a deficient number, since it is larger than the sum of its proper divisors (12776191).

2542422209 is a wasteful number, since it uses less digits than its factorization.

2542422209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12776190.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 2542422209 is about 50422.4375551202. The cubic root of 2542422209 is about 1364.8425637456.

The spelling of 2542422209 in words is "two billion, five hundred forty-two million, four hundred twenty-two thousand, two hundred nine".