5020431649 has 2 divisors, whose sum is σ = 5020431650. Its totient is φ = 5020431648.

The previous prime is 5020431641. The next prime is 5020431667. The reversal of 5020431649 is 9461340205.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3255843600 + 1764588049 = 57060^2 + 42007^2 .

It is a cyclic number.

It is not a de Polignac number, because 5020431649 - 2³ = 5020431641 is a prime.

It is not a weakly prime, because it can be changed into another prime (5020431641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2510215824 + 2510215825.

It is an arithmetic number, because the mean of its divisors is an integer number (2510215825).

Almost surely, 2^5020431649 is an apocalyptic number.

It is an amenable number.

5020431649 is a deficient number, since it is larger than the sum of its proper divisors (1).

5020431649 is an equidigital number, since it uses as much as digits as its factorization.

5020431649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 5020431649 is about 70855.0044033588. The cubic root of 5020431649 is about 1712.3019564895.

The spelling of 5020431649 in words is "five billion, twenty million, four hundred thirty-one thousand, six hundred forty-nine".