4424405521 has 8 divisors (see below), whose sum is σ = 4439888640. Its totient is φ = 4408942512.

The previous prime is 4424405473. The next prime is 4424405527. The reversal of 4424405521 is 1255044244.

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 4424405521 - 2⁷ = 4424405393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4424405527) 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, 532626 + ... + 540868.

It is an arithmetic number, because the mean of its divisors is an integer number (554986080).

Almost surely, 2^4424405521 is an apocalyptic number.

It is an amenable number.

4424405521 is a deficient number, since it is larger than the sum of its proper divisors (15483119).

4424405521 is a wasteful number, since it uses less digits than its factorization.

4424405521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055.

The product of its (nonzero) digits is 25600, while the sum is 31.

The square root of 4424405521 is about 66516.2049503728. The cubic root of 4424405521 is about 1641.6666480776. Note that the first 4 decimals are identical.

Adding to 4424405521 its reverse (1255044244), we get a palindrome (5679449765).

The spelling of 4424405521 in words is "four billion, four hundred twenty-four million, four hundred five thousand, five hundred twenty-one".