4429825231225 has 27 divisors (see below), whose sum is σ = 5510459385997. Its totient is φ = 3532621006880.

The previous prime is 4429825231219. The next prime is 4429825231229. The reversal of 4429825231225 is 5221325289244.

The square root of 4429825231225 is 2104715.

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 168936618361 + 4260888612864 = 411019^2 + 2064192^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4429825231225 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4429825231229) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 5356499262 + ... + 5356500088.

Almost surely, 2^{4429825231225} is an apocalyptic number.

4429825231225 is the 2104715-th square number.

4429825231225 is the 1052358-th centered octagonal number.

It is an amenable number.

4429825231225 is a deficient number, since it is larger than the sum of its proper divisors (1080634154772).

4429825231225 is an frugal number, since it uses more digits than its factorization.

4429825231225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682 (or 1341 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 49.

Multiplying 4429825231225 by its sum of digits (49), we get a square (217061436330025 = 14733005²).

The spelling of 4429825231225 in words is "four trillion, four hundred twenty-nine billion, eight hundred twenty-five million, two hundred thirty-one thousand, two hundred twenty-five".