4553384921 has 2 divisors, whose sum is σ = 4553384922. Its totient is φ = 4553384920.

The previous prime is 4553384887. The next prime is 4553384947. The reversal of 4553384921 is 1294833554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2424577600 + 2128807321 = 49240^2 + 46139^2 .

It is a cyclic number.

It is not a de Polignac number, because 4553384921 - 2¹⁰ = 4553383897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4553384821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2276692460 + 2276692461.

It is an arithmetic number, because the mean of its divisors is an integer number (2276692461).

Almost surely, 2^4553384921 is an apocalyptic number.

It is an amenable number.

4553384921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4553384921 is an equidigital number, since it uses as much as digits as its factorization.

4553384921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 44.

The square root of 4553384921 is about 67478.7738551909. The cubic root of 4553384921 is about 1657.4666104548.

The spelling of 4553384921 in words is "four billion, five hundred fifty-three million, three hundred eighty-four thousand, nine hundred twenty-one".