25138203791700 has 144 divisors (see below), whose sum is σ = 77013845423424. Its totient is φ = 6309014476800.

The previous prime is 25138203791663. The next prime is 25138203791731. The reversal of 25138203791700 is 719730283152.

It is a self number, because there is not a number n which added to its sum of digits gives 25138203791700.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 307983895 + ... + 308065505.

It is an arithmetic number, because the mean of its divisors is an integer number (534818370996).

Almost surely, 2^{25138203791700} is an apocalyptic number.

25138203791700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25138203791700 is an abundant number, since it is smaller than the sum of its proper divisors (51875641631724).

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

25138203791700 is a wasteful number, since it uses less digits than its factorization.

25138203791700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142042 (or 142035 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 25138203791700 in words is "twenty-five trillion, one hundred thirty-eight billion, two hundred three million, seven hundred ninety-one thousand, seven hundred".