25113520129 has 2 divisors, whose sum is σ = 25113520130. Its totient is φ = 25113520128.

The previous prime is 25113520027. The next prime is 25113520141. The reversal of 25113520129 is 92102531152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24066868225 + 1046651904 = 155135^2 + 32352^2 .

It is a cyclic number.

It is not a de Polignac number, because 25113520129 - 2²⁹ = 24576649217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25113520129.

It is not a weakly prime, because it can be changed into another prime (25113520529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12556760064 + 12556760065.

It is an arithmetic number, because the mean of its divisors is an integer number (12556760065).

Almost surely, 2^25113520129 is an apocalyptic number.

It is an amenable number.

25113520129 is a deficient number, since it is larger than the sum of its proper divisors (1).

25113520129 is an equidigital number, since it uses as much as digits as its factorization.

25113520129 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 31.

The spelling of 25113520129 in words is "twenty-five billion, one hundred thirteen million, five hundred twenty thousand, one hundred twenty-nine".