4455012521 has 2 divisors, whose sum is σ = 4455012522. Its totient is φ = 4455012520.

The previous prime is 4455012473. The next prime is 4455012559. The reversal of 4455012521 is 1252105544.

4455012521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3868840000 + 586172521 = 62200^2 + 24211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4455012521 is a prime.

It is not a weakly prime, because it can be changed into another prime (4455012421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2227506260 + 2227506261.

It is an arithmetic number, because the mean of its divisors is an integer number (2227506261).

Almost surely, 2^4455012521 is an apocalyptic number.

It is an amenable number.

4455012521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4455012521 is an equidigital number, since it uses as much as digits as its factorization.

4455012521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 4455012521 is about 66745.8801799781. The cubic root of 4455012521 is about 1645.4435072606.

The spelling of 4455012521 in words is "four billion, four hundred fifty-five million, twelve thousand, five hundred twenty-one".