4424144443225 has 48 divisors (see below), whose sum is σ = 6059107331200. Its totient is φ = 3183808965120.

The previous prime is 4424144443163. The next prime is 4424144443247. The reversal of 4424144443225 is 5223444414244.

It is not a de Polignac number, because 4424144443225 - 2¹⁵ = 4424144410457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5774461 + ... + 6495589.

Almost surely, 2^{4424144443225} is an apocalyptic number.

It is an amenable number.

4424144443225 is a deficient number, since it is larger than the sum of its proper divisors (1634962887975).

4424144443225 is a wasteful number, since it uses less digits than its factorization.

4424144443225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721634 (or 721629 counting only the distinct ones).

The product of its digits is 1966080, while the sum is 43.

Adding to 4424144443225 its reverse (5223444414244), we get a palindrome (9647588857469).

The spelling of 4424144443225 in words is "four trillion, four hundred twenty-four billion, one hundred forty-four million, four hundred forty-three thousand, two hundred twenty-five".