5200018609 has 2 divisors, whose sum is σ = 5200018610. Its totient is φ = 5200018608.

The previous prime is 5200018601. The next prime is 5200018639. The reversal of 5200018609 is 9068100025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4858508209 + 341510400 = 69703^2 + 18480^2 .

It is a cyclic number.

It is not a de Polignac number, because 5200018609 - 2³ = 5200018601 is a prime.

It is not a weakly prime, because it can be changed into another prime (5200018601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2600009304 + 2600009305.

It is an arithmetic number, because the mean of its divisors is an integer number (2600009305).

Almost surely, 2^5200018609 is an apocalyptic number.

It is an amenable number.

5200018609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5200018609 is an equidigital number, since it uses as much as digits as its factorization.

5200018609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 5200018609 is about 72111.1545393637. The cubic root of 5200018609 is about 1732.4802773259.

The spelling of 5200018609 in words is "five billion, two hundred million, eighteen thousand, six hundred nine".