27550005025055 has 4 divisors (see below), whose sum is σ = 33060006030072. Its totient is φ = 22040004020040.

The previous prime is 27550005025031. The next prime is 27550005025057. The reversal of 27550005025055 is 55052050005572.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 27550005025055 - 2⁶ = 27550005024991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27550005025057) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2755000502501 + ... + 2755000502510.

It is an arithmetic number, because the mean of its divisors is an integer number (8265001507518).

Almost surely, 2^{27550005025055} is an apocalyptic number.

27550005025055 is a deficient number, since it is larger than the sum of its proper divisors (5510001005017).

27550005025055 is an equidigital number, since it uses as much as digits as its factorization.

27550005025055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510001005016.

The product of its (nonzero) digits is 437500, while the sum is 41.

The spelling of 27550005025055 in words is "twenty-seven trillion, five hundred fifty billion, five million, twenty-five thousand, fifty-five".