4452521 has 8 divisors (see below), whose sum is σ = 4824864. Its totient is φ = 4092480.

The previous prime is 4452509. The next prime is 4452523. The reversal of 4452521 is 1252544.

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 a de Polignac number, because none of the positive numbers 2^k-4452521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4452523) 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 7 ways as a sum of consecutive naturals, for example, 2315 + ... + 3776.

It is an arithmetic number, because the mean of its divisors is an integer number (603108).

Almost surely, 2^4452521 is an apocalyptic number.

It is an amenable number.

4452521 is a deficient number, since it is larger than the sum of its proper divisors (372343).

4452521 is a wasteful number, since it uses less digits than its factorization.

4452521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6151.

The product of its digits is 1600, while the sum is 23.

The square root of 4452521 is about 2110.0997606748. The cubic root of 4452521 is about 164.5136705164.

Adding to 4452521 its sum of digits (23), we get a palindrome (4452544).

The spelling of 4452521 in words is "four million, four hundred fifty-two thousand, five hundred twenty-one".