43220624525 has 12 divisors (see below), whose sum is σ = 57716157492. Its totient is φ = 31916768640.

The previous prime is 43220624521. The next prime is 43220624609. The reversal of 43220624525 is 52542602234.

It can be written as a sum of positive squares in 6 ways, for example, as 17344363204 + 25876261321 = 131698^2 + 160861^2 .

It is not a de Polignac number, because 43220624525 - 2² = 43220624521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43220624521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66492944 + ... + 66493593.

It is an arithmetic number, because the mean of its divisors is an integer number (4809679791).

Almost surely, 2^43220624525 is an apocalyptic number.

It is an amenable number.

43220624525 is a deficient number, since it is larger than the sum of its proper divisors (14495532967).

43220624525 is a wasteful number, since it uses less digits than its factorization.

43220624525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132986560 (or 132986555 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 43220624525 in words is "forty-three billion, two hundred twenty million, six hundred twenty-four thousand, five hundred twenty-five".