25560005137 has 2 divisors, whose sum is σ = 25560005138. Its totient is φ = 25560005136.

The previous prime is 25560005101. The next prime is 25560005173. The reversal of 25560005137 is 73150006552.

Together with next prime (25560005173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (25560005101) and next prime (25560005173).

It can be written as a sum of positive squares in only one way, i.e., 18810396801 + 6749608336 = 137151^2 + 82156^2 .

It is a cyclic number.

It is not a de Polignac number, because 25560005137 - 2¹¹ = 25560003089 is a prime.

It is not a weakly prime, because it can be changed into another prime (25560005437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12780002568 + 12780002569.

It is an arithmetic number, because the mean of its divisors is an integer number (12780002569).

Almost surely, 2^25560005137 is an apocalyptic number.

It is an amenable number.

25560005137 is a deficient number, since it is larger than the sum of its proper divisors (1).

25560005137 is an equidigital number, since it uses as much as digits as its factorization.

25560005137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 34.

The spelling of 25560005137 in words is "twenty-five billion, five hundred sixty million, five thousand, one hundred thirty-seven".