4453452521 has 4 divisors (see below), whose sum is σ = 5089660032. Its totient is φ = 3817245012.

The previous prime is 4453452499. The next prime is 4453452557. The reversal of 4453452521 is 1252543544.

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 not a de Polignac number, because 4453452521 - 2²⁶ = 4386343657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4453452581) 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, 318103745 + ... + 318103758.

It is an arithmetic number, because the mean of its divisors is an integer number (1272415008).

Almost surely, 2^4453452521 is an apocalyptic number.

It is an amenable number.

4453452521 is a deficient number, since it is larger than the sum of its proper divisors (636207511).

4453452521 is an equidigital number, since it uses as much as digits as its factorization.

4453452521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636207510.

The product of its digits is 96000, while the sum is 35.

The square root of 4453452521 is about 66734.1930422478. The cubic root of 4453452521 is about 1645.2514246322.

The spelling of 4453452521 in words is "four billion, four hundred fifty-three million, four hundred fifty-two thousand, five hundred twenty-one".