25328889013 has 2 divisors, whose sum is σ = 25328889014. Its totient is φ = 25328889012.

The previous prime is 25328889011. The next prime is 25328889041. The reversal of 25328889013 is 31098882352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13032962244 + 12295926769 = 114162^2 + 110887^2 .

It is a cyclic number.

It is not a de Polignac number, because 25328889013 - 2¹ = 25328889011 is a prime.

It is a super-2 number, since 2×25328889013² (a number of 22 digits) contains 22 as substring.

Together with 25328889011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25328889011) 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, 12664444506 + 12664444507.

It is an arithmetic number, because the mean of its divisors is an integer number (12664444507).

Almost surely, 2^25328889013 is an apocalyptic number.

It is an amenable number.

25328889013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25328889013 is an equidigital number, since it uses as much as digits as its factorization.

25328889013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 25328889013 in words is "twenty-five billion, three hundred twenty-eight million, eight hundred eighty-nine thousand, thirteen".