4424112521 has 4 divisors (see below), whose sum is σ = 4684354452. Its totient is φ = 4163870592.

The previous prime is 4424112461. The next prime is 4424112523. The reversal of 4424112521 is 1252114244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3333792121 + 1090320400 = 57739^2 + 33020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4424112521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4424112523) 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, 130120940 + ... + 130120973.

It is an arithmetic number, because the mean of its divisors is an integer number (1171088613).

Almost surely, 2^4424112521 is an apocalyptic number.

It is an amenable number.

4424112521 is a deficient number, since it is larger than the sum of its proper divisors (260241931).

4424112521 is a wasteful number, since it uses less digits than its factorization.

4424112521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260241930.

The product of its digits is 2560, while the sum is 26.

The square root of 4424112521 is about 66514.0024430946. The cubic root of 4424112521 is about 1641.6304082601.

Adding to 4424112521 its reverse (1252114244), we get a palindrome (5676226765).

The spelling of 4424112521 in words is "four billion, four hundred twenty-four million, one hundred twelve thousand, five hundred twenty-one".