25263888751525 has 24 divisors (see below), whose sum is σ = 32340073309184. Its totient is φ = 19557751147200.

The previous prime is 25263888751501. The next prime is 25263888751529. The reversal of 25263888751525 is 52515788836252.

It is a de Polignac number, because none of the positive numbers 2^k-25263888751525 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25263888751529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9834052 + ... + 12134098.

Almost surely, 2^{25263888751525} is an apocalyptic number.

25263888751525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25263888751525 is a deficient number, since it is larger than the sum of its proper divisors (7076184557659).

25263888751525 is a wasteful number, since it uses less digits than its factorization.

25263888751525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314261 (or 2314256 counting only the distinct ones).

The product of its digits is 322560000, while the sum is 67.

The spelling of 25263888751525 in words is "twenty-five trillion, two hundred sixty-three billion, eight hundred eighty-eight million, seven hundred fifty-one thousand, five hundred twenty-five".