25327138913 has 2 divisors, whose sum is σ = 25327138914. Its totient is φ = 25327138912.

The previous prime is 25327138901. The next prime is 25327138937. The reversal of 25327138913 is 31983172352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12946571089 + 12380567824 = 113783^2 + 111268^2 .

It is a cyclic number.

It is not a de Polignac number, because 25327138913 - 2⁴ = 25327138897 is a prime.

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 (25327138943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12663569456 + 12663569457.

It is an arithmetic number, because the mean of its divisors is an integer number (12663569457).

Almost surely, 2^25327138913 is an apocalyptic number.

It is an amenable number.

25327138913 is a deficient number, since it is larger than the sum of its proper divisors (1).

25327138913 is an equidigital number, since it uses as much as digits as its factorization.

25327138913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The spelling of 25327138913 in words is "twenty-five billion, three hundred twenty-seven million, one hundred thirty-eight thousand, nine hundred thirteen".