43431313025 has 24 divisors (see below), whose sum is σ = 54258610560. Its totient is φ = 34485514560.

The previous prime is 43431313021. The next prime is 43431313031. The reversal of 43431313025 is 52031313434.

It is not a de Polignac number, because 43431313025 - 2² = 43431313021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43431313021) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1822487 + ... + 1846163.

It is an arithmetic number, because the mean of its divisors is an integer number (2260775440).

Almost surely, 2^43431313025 is an apocalyptic number.

It is an amenable number.

43431313025 is a deficient number, since it is larger than the sum of its proper divisors (10827297535).

43431313025 is a wasteful number, since it uses less digits than its factorization.

43431313025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24233 (or 24228 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 43431313025 its reverse (52031313434), we get a palindrome (95462626459).

The spelling of 43431313025 in words is "forty-three billion, four hundred thirty-one million, three hundred thirteen thousand, twenty-five".