27581056103 has 4 divisors (see below), whose sum is σ = 27791598648. Its totient is φ = 27370513560.

The previous prime is 27581056099. The next prime is 27581056141. The reversal of 27581056103 is 30165018572.

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

It is a cyclic number.

It is not a de Polignac number, because 27581056103 - 2² = 27581056099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27581056163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105271076 + ... + 105271337.

It is an arithmetic number, because the mean of its divisors is an integer number (6947899662).

Almost surely, 2^27581056103 is an apocalyptic number.

27581056103 is a deficient number, since it is larger than the sum of its proper divisors (210542545).

27581056103 is a wasteful number, since it uses less digits than its factorization.

27581056103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210542544.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 27581056103 in words is "twenty-seven billion, five hundred eighty-one million, fifty-six thousand, one hundred three".