5218809403 has 2 divisors, whose sum is σ = 5218809404. Its totient is φ = 5218809402.

The previous prime is 5218809389. The next prime is 5218809467. The reversal of 5218809403 is 3049088125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5218809403 - 2⁵ = 5218809371 is a prime.

It is not a weakly prime, because it can be changed into another prime (5218809703) 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, 2609404701 + 2609404702.

It is an arithmetic number, because the mean of its divisors is an integer number (2609404702).

Almost surely, 2^5218809403 is an apocalyptic number.

5218809403 is a deficient number, since it is larger than the sum of its proper divisors (1).

5218809403 is an equidigital number, since it uses as much as digits as its factorization.

5218809403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 5218809403 is about 72241.3275279462. The cubic root of 5218809403 is about 1734.5645996952.

The spelling of 5218809403 in words is "five billion, two hundred eighteen million, eight hundred nine thousand, four hundred three".