2509647089 has 2 divisors, whose sum is σ = 2509647090. Its totient is φ = 2509647088.

The previous prime is 2509647031. The next prime is 2509647143. The reversal of 2509647089 is 9807469052.

It is a happy number.

2509647089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1864080625 + 645566464 = 43175^2 + 25408^2 .

It is a cyclic number.

It is not a de Polignac number, because 2509647089 - 2¹⁶ = 2509581553 is a prime.

It is a super-2 number, since 2×2509647089² = 12596657022652347842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2509641089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1254823544 + 1254823545.

It is an arithmetic number, because the mean of its divisors is an integer number (1254823545).

Almost surely, 2^2509647089 is an apocalyptic number.

It is an amenable number.

2509647089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2509647089 is an equidigital number, since it uses as much as digits as its factorization.

2509647089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 2509647089 is about 50096.3780028058. The cubic root of 2509647089 is about 1358.9523161355.

The spelling of 2509647089 in words is "two billion, five hundred nine million, six hundred forty-seven thousand, eighty-nine".