43525441 has 4 divisors (see below), whose sum is σ = 43562884. Its totient is φ = 43488000.

The previous prime is 43525439. The next prime is 43525451. The reversal of 43525441 is 14452534.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14452534 = 2 ⋅7226267.

It can be written as a sum of positive squares in 2 ways, for example, as 163216 + 43362225 = 404^2 + 6585^2 .

It is a cyclic number.

It is not a de Polignac number, because 43525441 - 2¹ = 43525439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43525451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16920 + ... + 19321.

It is an arithmetic number, because the mean of its divisors is an integer number (10890721).

Almost surely, 2^43525441 is an apocalyptic number.

It is an amenable number.

43525441 is a deficient number, since it is larger than the sum of its proper divisors (37443).

43525441 is a wasteful number, since it uses less digits than its factorization.

43525441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37442.

The product of its digits is 9600, while the sum is 28.

The square root of 43525441 is about 6597.3813744546. The cubic root of 43525441 is about 351.7610319548.

Adding to 43525441 its reverse (14452534), we get a palindrome (57977975).

The spelling of 43525441 in words is "forty-three million, five hundred twenty-five thousand, four hundred forty-one".