5251718803 has 2 divisors, whose sum is σ = 5251718804. Its totient is φ = 5251718802.

The previous prime is 5251718743. The next prime is 5251718831. The reversal of 5251718803 is 3088171525.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5251718803 is a prime.

It is not a weakly prime, because it can be changed into another prime (5251718833) 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, 2625859401 + 2625859402.

It is an arithmetic number, because the mean of its divisors is an integer number (2625859402).

Almost surely, 2^5251718803 is an apocalyptic number.

5251718803 is a deficient number, since it is larger than the sum of its proper divisors (1).

5251718803 is an equidigital number, since it uses as much as digits as its factorization.

5251718803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 5251718803 is about 72468.7436278566. The cubic root of 5251718803 is about 1738.2029717490.

The spelling of 5251718803 in words is "five billion, two hundred fifty-one million, seven hundred eighteen thousand, eight hundred three".