25550263904 has 24 divisors (see below), whose sum is σ = 54874999368. Its totient is φ = 11613756160.

The previous prime is 25550263877. The next prime is 25550263933. The reversal of 25550263904 is 40936205552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36292637 + ... + 36293340.

It is an arithmetic number, because the mean of its divisors is an integer number (2286458307).

Almost surely, 2^25550263904 is an apocalyptic number.

It is an amenable number.

25550263904 is an abundant number, since it is smaller than the sum of its proper divisors (29324735464).

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

25550263904 is a wasteful number, since it uses less digits than its factorization.

25550263904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72585998 (or 72585990 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 25550263904 in words is "twenty-five billion, five hundred fifty million, two hundred sixty-three thousand, nine hundred four".