25257680875 has 72 divisors (see below), whose sum is σ = 38702821248. Its totient is φ = 16406560800.

The previous prime is 25257680873. The next prime is 25257680891. The reversal of 25257680875 is 57808675252.

It is not a de Polignac number, because 25257680875 - 2¹ = 25257680873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25257680873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2205414 + ... + 2216836.

It is an arithmetic number, because the mean of its divisors is an integer number (537539184).

Almost surely, 2^25257680875 is an apocalyptic number.

25257680875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25257680875 is a deficient number, since it is larger than the sum of its proper divisors (13445140373).

25257680875 is a wasteful number, since it uses less digits than its factorization.

25257680875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11490 (or 11454 counting only the distinct ones).

The product of its (nonzero) digits is 9408000, while the sum is 55.

The spelling of 25257680875 in words is "twenty-five billion, two hundred fifty-seven million, six hundred eighty thousand, eight hundred seventy-five".