25587672908 has 24 divisors (see below), whose sum is σ = 51210647712. Its totient is φ = 10958580864.

The previous prime is 25587672907. The next prime is 25587672917. The reversal of 25587672908 is 80927678552.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (25587672907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273785 + ... + 355152.

It is an arithmetic number, because the mean of its divisors is an integer number (2133776988).

Almost surely, 2^25587672908 is an apocalyptic number.

25587672908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25587672908 is an abundant number, since it is smaller than the sum of its proper divisors (25622974804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25587672908 is a wasteful number, since it uses less digits than its factorization.

25587672908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630401 (or 630399 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 59.

The spelling of 25587672908 in words is "twenty-five billion, five hundred eighty-seven million, six hundred seventy-two thousand, nine hundred eight".