27775550025500 has 48 divisors (see below), whose sum is σ = 60788444371200. Its totient is φ = 11087025300800.

The previous prime is 27775550025499. The next prime is 27775550025511. The reversal of 27775550025500 is 552005557772.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57747035 + ... + 58226034.

It is an arithmetic number, because the mean of its divisors is an integer number (1266425924400).

Almost surely, 2^{27775550025500} is an apocalyptic number.

27775550025500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27775550025500 is an abundant number, since it is smaller than the sum of its proper divisors (33012894345700).

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

27775550025500 is a wasteful number, since it uses less digits than its factorization.

27775550025500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115973567 (or 115973555 counting only the distinct ones).

The product of its (nonzero) digits is 4287500, while the sum is 50.

The spelling of 27775550025500 in words is "twenty-seven trillion, seven hundred seventy-five billion, five hundred fifty million, twenty-five thousand, five hundred".