4809524221 has 2 divisors, whose sum is σ = 4809524222. Its totient is φ = 4809524220.

The previous prime is 4809524183. The next prime is 4809524257. The reversal of 4809524221 is 1224259084.

4809524221 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., 3488201721 + 1321322500 = 59061^2 + 36350^2 .

It is a cyclic number.

It is not a de Polignac number, because 4809524221 - 2²⁹ = 4272653309 is a prime.

It is a super-3 number, since 3×4809524221³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4809524521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2404762110 + 2404762111.

It is an arithmetic number, because the mean of its divisors is an integer number (2404762111).

Almost surely, 2^4809524221 is an apocalyptic number.

It is an amenable number.

4809524221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4809524221 is an equidigital number, since it uses as much as digits as its factorization.

4809524221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 4809524221 is about 69350.7333847307. The cubic root of 4809524221 is about 1687.9802933627.

The spelling of 4809524221 in words is "four billion, eight hundred nine million, five hundred twenty-four thousand, two hundred twenty-one".