25222224242 has 16 divisors (see below), whose sum is σ = 38300856480. Its totient is φ = 12455586528.

The previous prime is 25222224239. The next prime is 25222224263. The reversal of 25222224242 is 24242222252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83333 + ... + 239559.

It is an arithmetic number, because the mean of its divisors is an integer number (2393803530).

Almost surely, 2^25222224242 is an apocalyptic number.

25222224242 is a deficient number, since it is larger than the sum of its proper divisors (13078632238).

25222224242 is a wasteful number, since it uses less digits than its factorization.

25222224242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157225.

The product of its digits is 20480, while the sum is 29.

Adding to 25222224242 its reverse (24242222252), we get a palindrome (49464446494).

The spelling of 25222224242 in words is "twenty-five billion, two hundred twenty-two million, two hundred twenty-four thousand, two hundred forty-two".