4432113521 has 8 divisors (see below), whose sum is σ = 4838433600. Its totient is φ = 4026360240.

The previous prime is 4432113421. The next prime is 4432113523. The reversal of 4432113521 is 1253112344.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4432113521 - 2¹⁰ = 4432112497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4432113523) 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, 125261 + ... + 156698.

It is an arithmetic number, because the mean of its divisors is an integer number (604804200).

Almost surely, 2^4432113521 is an apocalyptic number.

It is an amenable number.

4432113521 is a deficient number, since it is larger than the sum of its proper divisors (406320079).

4432113521 is a wasteful number, since it uses less digits than its factorization.

4432113521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283399.

The product of its digits is 2880, while the sum is 26.

The square root of 4432113521 is about 66574.1205048929. The cubic root of 4432113521 is about 1642.6194408824.

Adding to 4432113521 its reverse (1253112344), we get a palindrome (5685225865).

The spelling of 4432113521 in words is "four billion, four hundred thirty-two million, one hundred thirteen thousand, five hundred twenty-one".