4506821251 has 2 divisors, whose sum is σ = 4506821252. Its totient is φ = 4506821250.

The previous prime is 4506821203. The next prime is 4506821281. The reversal of 4506821251 is 1521286054.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4506821251 - 2⁹ = 4506820739 is a prime.

It is a super-2 number, since 2×4506821251² = 40622875576930410002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4506821281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2253410625 + 2253410626.

It is an arithmetic number, because the mean of its divisors is an integer number (2253410626).

Almost surely, 2^4506821251 is an apocalyptic number.

4506821251 is a deficient number, since it is larger than the sum of its proper divisors (1).

4506821251 is an equidigital number, since it uses as much as digits as its factorization.

4506821251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 4506821251 is about 67132.8626754438. The cubic root of 4506821251 is about 1651.7973986551.

The spelling of 4506821251 in words is "four billion, five hundred six million, eight hundred twenty-one thousand, two hundred fifty-one".