43425543 has 8 divisors (see below), whose sum is σ = 66172288. Its totient is φ = 24814584.

The previous prime is 43425539. The next prime is 43425553. The reversal of 43425543 is 34552434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43425543 - 2² = 43425539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43425543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43425523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033921 + ... + 1033962.

It is an arithmetic number, because the mean of its divisors is an integer number (8271536).

Almost surely, 2^43425543 is an apocalyptic number.

43425543 is a deficient number, since it is larger than the sum of its proper divisors (22746745).

43425543 is a wasteful number, since it uses less digits than its factorization.

43425543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067893.

The product of its digits is 28800, while the sum is 30.

The square root of 43425543 is about 6589.8059910744. The cubic root of 43425543 is about 351.4917094523.

Adding to 43425543 its reverse (34552434), we get a palindrome (77977977).

The spelling of 43425543 in words is "forty-three million, four hundred twenty-five thousand, five hundred forty-three".