43013525 has 24 divisors (see below), whose sum is σ = 55948800. Its totient is φ = 32760000.

The previous prime is 43013491. The next prime is 43013527. The reversal of 43013525 is 52531034.

It is a de Polignac number, because none of the positive numbers 2^k-43013525 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43013525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43013527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56900 + ... + 57650.

It is an arithmetic number, because the mean of its divisors is an integer number (2331200).

Almost surely, 2^43013525 is an apocalyptic number.

It is an amenable number.

43013525 is a deficient number, since it is larger than the sum of its proper divisors (12935275).

43013525 is a wasteful number, since it uses less digits than its factorization.

43013525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 43013525 is about 6558.4697148039. The cubic root of 43013525 is about 350.3765335516.

Adding to 43013525 its reverse (52531034), we get a palindrome (95544559).

The spelling of 43013525 in words is "forty-three million, thirteen thousand, five hundred twenty-five".