43529843221225 has 9 divisors (see below), whose sum is σ = 53977046500183. Its totient is φ = 34823848186120.

The previous prime is 43529843221201. The next prime is 43529843221253. The reversal of 43529843221225 is 52212234892534.

The square root of 43529843221225 is 6597715.

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

It can be written as a sum of positive squares in only one way, i.e., 15670743559641 + 27859099661584 = 3958629^2 + 5278172^2 .

It is not a de Polignac number, because 43529843221225 - 2³¹ = 43527695737577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32328804 + ... + 33648346.

Almost surely, 2^{43529843221225} is an apocalyptic number.

43529843221225 is the 6597715-th square number.

43529843221225 is the 3298858-th centered octagonal number.

It is an amenable number.

43529843221225 is a deficient number, since it is larger than the sum of its proper divisors (10447203278958).

43529843221225 is an frugal number, since it uses more digits than its factorization.

43529843221225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639096 (or 1319548 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 52.

The spelling of 43529843221225 in words is "forty-three trillion, five hundred twenty-nine billion, eight hundred forty-three million, two hundred twenty-one thousand, two hundred twenty-five".