43149675625 has 45 divisors (see below), whose sum is σ = 62775959169. Its totient is φ = 29563422000.

The previous prime is 43149675601. The next prime is 43149675637. The reversal of 43149675625 is 52657694134.

The square root of 43149675625 is 207725.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3382934569 + 39766741056 = 58163^2 + 199416^2 .

It is not a de Polignac number, because 43149675625 - 2⁵ = 43149675593 is a prime.

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 44 ways as a sum of consecutive naturals, for example, 36351282 + ... + 36352468.

Almost surely, 2^43149675625 is an apocalyptic number.

43149675625 is the 207725-th square number.

43149675625 is the 103863-rd centered octagonal number.

It is an amenable number.

43149675625 is a deficient number, since it is larger than the sum of its proper divisors (19626283544).

43149675625 is an frugal number, since it uses more digits than its factorization.

43149675625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408 (or 1199 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 52.

The spelling of 43149675625 in words is "forty-three billion, one hundred forty-nine million, six hundred seventy-five thousand, six hundred twenty-five".