4866552521 has 2 divisors, whose sum is σ = 4866552522. Its totient is φ = 4866552520.

The previous prime is 4866552463. The next prime is 4866552533. The reversal of 4866552521 is 1252556684.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4765831225 + 100721296 = 69035^2 + 10036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4866552521 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 (4866552541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2433276260 + 2433276261.

It is an arithmetic number, because the mean of its divisors is an integer number (2433276261).

Almost surely, 2^4866552521 is an apocalyptic number.

It is an amenable number.

4866552521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4866552521 is an equidigital number, since it uses as much as digits as its factorization.

4866552521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576000, while the sum is 44.

The square root of 4866552521 is about 69760.6803364187. The cubic root of 4866552521 is about 1694.6257642364.

The spelling of 4866552521 in words is "four billion, eight hundred sixty-six million, five hundred fifty-two thousand, five hundred twenty-one".