42244444240225 has 24 divisors (see below), whose sum is σ = 52446193943040. Its totient is φ = 33754860222720.

The previous prime is 42244444240183. The next prime is 42244444240319. The reversal of 42244444240225 is 52204244444224.

It is a de Polignac number, because none of the positive numbers 2^k-42244444240225 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 856912777 + ... + 856962073.

It is an arithmetic number, because the mean of its divisors is an integer number (2185258080960).

Almost surely, 2^{42244444240225} is an apocalyptic number.

It is an amenable number.

42244444240225 is a deficient number, since it is larger than the sum of its proper divisors (10201749702815).

42244444240225 is a wasteful number, since it uses less digits than its factorization.

42244444240225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89889 (or 89884 counting only the distinct ones).

The product of its (nonzero) digits is 2621440, while the sum is 43.

Adding to 42244444240225 its reverse (52204244444224), we get a palindrome (94448688684449).

The spelling of 42244444240225 in words is "forty-two trillion, two hundred forty-four billion, four hundred forty-four million, two hundred forty thousand, two hundred twenty-five".