43249441225 has 9 divisors (see below), whose sum is σ = 53630596533. Its totient is φ = 34598721120.

The previous prime is 43249441181. The next prime is 43249441241. The reversal of 43249441225 is 52214494234.

It is a happy number.

The square root of 43249441225 is 207965.

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 8963734329 + 34285706896 = 94677^2 + 185164^2 .

It is not a de Polignac number, because 43249441225 - 2⁹ = 43249440713 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 (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1019029 + ... + 1060621.

Almost surely, 2^43249441225 is an apocalyptic number.

43249441225 is the 207965-th square number.

43249441225 is the 103983-rd centered octagonal number.

It is an amenable number.

43249441225 is a deficient number, since it is larger than the sum of its proper divisors (10381155308).

43249441225 is an frugal number, since it uses more digits than its factorization.

43249441225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83196 (or 41598 counting only the distinct ones).

The product of its digits is 276480, while the sum is 40.

The spelling of 43249441225 in words is "forty-three billion, two hundred forty-nine million, four hundred forty-one thousand, two hundred twenty-five".