4413522521 has 4 divisors (see below), whose sum is σ = 4645813200. Its totient is φ = 4181231844.

The previous prime is 4413522511. The next prime is 4413522527. The reversal of 4413522521 is 1252253144.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4413522521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4413522527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116145311 + ... + 116145348.

It is an arithmetic number, because the mean of its divisors is an integer number (1161453300).

Almost surely, 2^4413522521 is an apocalyptic number.

It is an amenable number.

4413522521 is a deficient number, since it is larger than the sum of its proper divisors (232290679).

4413522521 is a wasteful number, since it uses less digits than its factorization.

4413522521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232290678.

The product of its digits is 9600, while the sum is 29.

The square root of 4413522521 is about 66434.3474491923. The cubic root of 4413522521 is about 1640.3195046002.

Adding to 4413522521 its reverse (1252253144), we get a palindrome (5665775665).

The spelling of 4413522521 in words is "four billion, four hundred thirteen million, five hundred twenty-two thousand, five hundred twenty-one".