5245000309 has 2 divisors, whose sum is σ = 5245000310. Its totient is φ = 5245000308.

The previous prime is 5245000289. The next prime is 5245000381. The reversal of 5245000309 is 9030005425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2884012209 + 2360988100 = 53703^2 + 48590^2 .

It is a cyclic number.

It is not a de Polignac number, because 5245000309 - 2⁷ = 5245000181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5245000909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2622500154 + 2622500155.

It is an arithmetic number, because the mean of its divisors is an integer number (2622500155).

Almost surely, 2^5245000309 is an apocalyptic number.

It is an amenable number.

5245000309 is a deficient number, since it is larger than the sum of its proper divisors (1).

5245000309 is an equidigital number, since it uses as much as digits as its factorization.

5245000309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 5245000309 is about 72422.3743673183. The cubic root of 5245000309 is about 1737.4614310504.

The spelling of 5245000309 in words is "five billion, two hundred forty-five million, three hundred nine", and thus it is an aban number.