2542561222 has 8 divisors (see below), whose sum is σ = 3878483400. Its totient is φ = 1249733424.

The previous prime is 2542561159. The next prime is 2542561223. The reversal of 2542561222 is 2221652452.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542561223) 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 3 ways as a sum of consecutive naturals, for example, 10773447 + ... + 10773682.

It is an arithmetic number, because the mean of its divisors is an integer number (484810425).

Almost surely, 2^2542561222 is an apocalyptic number.

2542561222 is a deficient number, since it is larger than the sum of its proper divisors (1335922178).

2542561222 is a wasteful number, since it uses less digits than its factorization.

2542561222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21547190.

The product of its digits is 19200, while the sum is 31.

The square root of 2542561222 is about 50423.8160198135. The cubic root of 2542561222 is about 1364.8674386334.

The spelling of 2542561222 in words is "two billion, five hundred forty-two million, five hundred sixty-one thousand, two hundred twenty-two".