25968513325 has 6 divisors (see below), whose sum is σ = 32200956554. Its totient is φ = 20774810640.

The previous prime is 25968513323. The next prime is 25968513433. The reversal of 25968513325 is 52331586952.

It can be written as a sum of positive squares in 3 ways, for example, as 802815556 + 25165697769 = 28334^2 + 158637^2 .

It is not a de Polignac number, because 25968513325 - 2¹ = 25968513323 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25968513323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 519370242 + ... + 519370291.

Almost surely, 2^25968513325 is an apocalyptic number.

25968513325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25968513325 is a deficient number, since it is larger than the sum of its proper divisors (6232443229).

25968513325 is a wasteful number, since it uses less digits than its factorization.

25968513325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038740543 (or 1038740538 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 49.

The spelling of 25968513325 in words is "twenty-five billion, nine hundred sixty-eight million, five hundred thirteen thousand, three hundred twenty-five".