25389038917875 has 32 divisors (see below), whose sum is σ = 42288739811136. Its totient is φ = 13527558240000.

The previous prime is 25389038917871. The next prime is 25389038917903. The reversal of 25389038917875 is 57871983098352.

It is not a de Polignac number, because 25389038917875 - 2² = 25389038917871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (75).

It is a junction number, because it is equal to n+sod(n) for n = 25389038917797 and 25389038917806.

It is not an unprimeable number, because it can be changed into a prime (25389038917871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32772906 + ... + 33538655.

It is an arithmetic number, because the mean of its divisors is an integer number (1321523119098).

Almost surely, 2^{25389038917875} is an apocalyptic number.

25389038917875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25389038917875 is a deficient number, since it is larger than the sum of its proper divisors (16899700893261).

25389038917875 is a wasteful number, since it uses less digits than its factorization.

25389038917875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66312600 (or 66312590 counting only the distinct ones).

The product of its (nonzero) digits is 914457600, while the sum is 75.

The spelling of 25389038917875 in words is "twenty-five trillion, three hundred eighty-nine billion, thirty-eight million, nine hundred seventeen thousand, eight hundred seventy-five".