25278053050500 has 48 divisors (see below), whose sum is σ = 73609690487424. Its totient is φ = 6740814146400.

The previous prime is 25278053050477. The next prime is 25278053050517. The reversal of 25278053050500 is 505035087252.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 8426016184 + ... + 8426019183.

It is an arithmetic number, because the mean of its divisors is an integer number (1533535218488).

Almost surely, 2^{25278053050500} is an apocalyptic number.

25278053050500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25278053050500 is an abundant number, since it is smaller than the sum of its proper divisors (48331637436924).

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

25278053050500 is a wasteful number, since it uses less digits than its factorization.

25278053050500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16852035389 (or 16852035377 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 42.

The spelling of 25278053050500 in words is "twenty-five trillion, two hundred seventy-eight billion, fifty-three million, fifty thousand, five hundred".