25485631922256 has 80 divisors (see below), whose sum is σ = 71849275608000. Its totient is φ = 7720108968960.

The previous prime is 25485631922221. The next prime is 25485631922281. The reversal of 25485631922256 is 65222913658452.

It is a self number, because there is not a number n which added to its sum of digits gives 25485631922256.

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 15 ways as a sum of consecutive naturals, for example, 7327765 + ... + 10230708.

It is an arithmetic number, because the mean of its divisors is an integer number (898115945100).

Almost surely, 2^{25485631922256} is an apocalyptic number.

It is an amenable number.

25485631922256 is an abundant number, since it is smaller than the sum of its proper divisors (46363643685744).

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

25485631922256 is a wasteful number, since it uses less digits than its factorization.

25485631922256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17561244 (or 17561238 counting only the distinct ones).

The product of its digits is 62208000, while the sum is 60.

The spelling of 25485631922256 in words is "twenty-five trillion, four hundred eighty-five billion, six hundred thirty-one million, nine hundred twenty-two thousand, two hundred fifty-six".