25525388006 has 12 divisors (see below), whose sum is σ = 40409306532. Its totient is φ = 12090972924.

The previous prime is 25525387991. The next prime is 25525388029. The reversal of 25525388006 is 60088352552.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 17676140 + ... + 17677583.

It is an arithmetic number, because the mean of its divisors is an integer number (3367442211).

Almost surely, 2^25525388006 is an apocalyptic number.

25525388006 is a deficient number, since it is larger than the sum of its proper divisors (14883918526).

25525388006 is a wasteful number, since it uses less digits than its factorization.

25525388006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35353763 (or 35353744 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 25525388006 in words is "twenty-five billion, five hundred twenty-five million, three hundred eighty-eight thousand, six".