43521532 has 12 divisors (see below), whose sum is σ = 76209336. Its totient is φ = 21747440.

The previous prime is 43521529. The next prime is 43521539. The reversal of 43521532 is 23512534.

43521532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 43521497 and 43521506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43521539) 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 3 ways as a sum of consecutive naturals, for example, 9543 + ... + 13345.

It is an arithmetic number, because the mean of its divisors is an integer number (6350778).

Almost surely, 2^43521532 is an apocalyptic number.

It is an amenable number.

43521532 is a deficient number, since it is larger than the sum of its proper divisors (32687804).

43521532 is a wasteful number, since it uses less digits than its factorization.

43521532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6668 (or 6666 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 43521532 is about 6597.0851138969. The cubic root of 43521532 is about 351.7505011403.

The spelling of 43521532 in words is "forty-three million, five hundred twenty-one thousand, five hundred thirty-two".