2512565129 has 2 divisors, whose sum is σ = 2512565130. Its totient is φ = 2512565128.

The previous prime is 2512565087. The next prime is 2512565131. The reversal of 2512565129 is 9215652152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2512315129 + 250000 = 50123^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 2512565129 - 2¹² = 2512561033 is a prime.

It is a Sophie Germain prime.

Together with 2512565131, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2512565092 and 2512565101.

It is not a weakly prime, because it can be changed into another prime (2512565189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256282564 + 1256282565.

It is an arithmetic number, because the mean of its divisors is an integer number (1256282565).

Almost surely, 2^2512565129 is an apocalyptic number.

It is an amenable number.

2512565129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2512565129 is an equidigital number, since it uses as much as digits as its factorization.

2512565129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54000, while the sum is 38.

The square root of 2512565129 is about 50125.4938030540. The cubic root of 2512565129 is about 1359.4788099867.

The spelling of 2512565129 in words is "two billion, five hundred twelve million, five hundred sixty-five thousand, one hundred twenty-nine".