4444359667225 has 9 divisors (see below), whose sum is σ = 5511019058013. Its totient is φ = 3555479301120.

The previous prime is 4444359667199. The next prime is 4444359667289. The reversal of 4444359667225 is 5227669534444.

The square root of 4444359667225 is 2108165.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 6410724489 + 4437948942736 = 80067^2 + 2106644^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4444359667225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10330009 + ... + 10751641.

Almost surely, 2^{4444359667225} is an apocalyptic number.

4444359667225 is the 2108165-th square number.

4444359667225 is the 1054083-rd centered octagonal number.

It is an amenable number.

4444359667225 is a deficient number, since it is larger than the sum of its proper divisors (1066659390788).

4444359667225 is an frugal number, since it uses more digits than its factorization.

4444359667225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843276 (or 421638 counting only the distinct ones).

The product of its digits is 174182400, while the sum is 61.

The spelling of 4444359667225 in words is "four trillion, four hundred forty-four billion, three hundred fifty-nine million, six hundred sixty-seven thousand, two hundred twenty-five".