2444222225 has 48 divisors (see below), whose sum is σ = 3321216000. Its totient is φ = 1777305600.

The previous prime is 2444222203. The next prime is 2444222227. The reversal of 2444222225 is 5222224442.

It is a happy number.

It is not a de Polignac number, because 2444222225 - 2⁶ = 2444222161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (2444222227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2630561 + ... + 2631489.

It is an arithmetic number, because the mean of its divisors is an integer number (69192000).

Almost surely, 2^2444222225 is an apocalyptic number.

2444222225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2444222225 is a deficient number, since it is larger than the sum of its proper divisors (876993775).

2444222225 is a wasteful number, since it uses less digits than its factorization.

2444222225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 1173 counting only the distinct ones).

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

The square root of 2444222225 is about 49439.0758914444. The cubic root of 2444222225 is about 1347.0391855410.

Adding to 2444222225 its reverse (5222224442), we get a palindrome (7666446667).

The spelling of 2444222225 in words is "two billion, four hundred forty-four million, two hundred twenty-two thousand, two hundred twenty-five".