2500006109 has 2 divisors, whose sum is σ = 2500006110. Its totient is φ = 2500006108.

The previous prime is 2500006087. The next prime is 2500006141. The reversal of 2500006109 is 9016000052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2499000100 + 1006009 = 49990^2 + 1003^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500006109 - 2²⁰ = 2498957533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2500006169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250003054 + 1250003055.

It is an arithmetic number, because the mean of its divisors is an integer number (1250003055).

Almost surely, 2^2500006109 is an apocalyptic number.

It is an amenable number.

2500006109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500006109 is an equidigital number, since it uses as much as digits as its factorization.

2500006109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 2500006109 is about 50000.0610899627. The cubic root of 2500006109 is about 1357.2099137884.

The spelling of 2500006109 in words is "two billion, five hundred million, six thousand, one hundred nine".