27380510555 has 4 divisors (see below), whose sum is σ = 32856612672. Its totient is φ = 21904408440.

The previous prime is 27380510513. The next prime is 27380510581. The reversal of 27380510555 is 55501508372.

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

It is a de Polignac number, because none of the positive numbers 2^k-27380510555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2738051051 + ... + 2738051060.

It is an arithmetic number, because the mean of its divisors is an integer number (8214153168).

Almost surely, 2^27380510555 is an apocalyptic number.

27380510555 is a deficient number, since it is larger than the sum of its proper divisors (5476102117).

27380510555 is an equidigital number, since it uses as much as digits as its factorization.

27380510555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5476102116.

The product of its (nonzero) digits is 210000, while the sum is 41.

The spelling of 27380510555 in words is "twenty-seven billion, three hundred eighty million, five hundred ten thousand, five hundred fifty-five".