25951348078525 has 12 divisors (see below), whose sum is σ = 33578787775392. Its totient is φ = 19858422877040.

The previous prime is 25951348078501. The next prime is 25951348078529. The reversal of 25951348078525 is 52587084315952.

It is a happy number.

It is not a de Polignac number, because 25951348078525 - 2¹¹ = 25951348076477 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 (25951348078529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22566389059 + ... + 22566390208.

It is an arithmetic number, because the mean of its divisors is an integer number (2798232314616).

Almost surely, 2^{25951348078525} is an apocalyptic number.

25951348078525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25951348078525 is a deficient number, since it is larger than the sum of its proper divisors (7627439696867).

25951348078525 is a wasteful number, since it uses less digits than its factorization.

25951348078525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45132779300 (or 45132779295 counting only the distinct ones).

The product of its (nonzero) digits is 120960000, while the sum is 64.

The spelling of 25951348078525 in words is "twenty-five trillion, nine hundred fifty-one billion, three hundred forty-eight million, seventy-eight thousand, five hundred twenty-five".