2522521242 has 24 divisors (see below), whose sum is σ = 5469029280. Its totient is φ = 840291720.

The previous prime is 2522521229. The next prime is 2522521307. The reversal of 2522521242 is 2421252252.

It is a happy number.

It is a super-2 number, since 2×2522521242² = 12726226832682445128, which contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16884 + ... + 73007.

It is an arithmetic number, because the mean of its divisors is an integer number (227876220).

Almost surely, 2^2522521242 is an apocalyptic number.

2522521242 is an abundant number, since it is smaller than the sum of its proper divisors (2946508038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2522521242 is a wasteful number, since it uses less digits than its factorization.

2522521242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91458 (or 91455 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 2522521242 is about 50224.7074854598. The cubic root of 2522521242 is about 1361.2721016277.

Adding to 2522521242 its reverse (2421252252), we get a palindrome (4943773494).

The spelling of 2522521242 in words is "two billion, five hundred twenty-two million, five hundred twenty-one thousand, two hundred forty-two".