27550530503 has 4 divisors (see below), whose sum is σ = 27566522088. Its totient is φ = 27534538920.

The previous prime is 27550530487. The next prime is 27550530541. The reversal of 27550530503 is 30503505572.

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 27550530503 - 2⁴ = 27550530487 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 (27550530563) 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, 7993208 + ... + 7996653.

It is an arithmetic number, because the mean of its divisors is an integer number (6891630522).

Almost surely, 2^27550530503 is an apocalyptic number.

27550530503 is a deficient number, since it is larger than the sum of its proper divisors (15991585).

27550530503 is a wasteful number, since it uses less digits than its factorization.

27550530503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15991584.

The product of its (nonzero) digits is 78750, while the sum is 35.

The spelling of 27550530503 in words is "twenty-seven billion, five hundred fifty million, five hundred thirty thousand, five hundred three".