27750505503 has 48 divisors (see below), whose sum is σ = 43877998080. Its totient is φ = 15551754624.

The previous prime is 27750505493. The next prime is 27750505547. The reversal of 27750505503 is 30550505772.

It is not a de Polignac number, because 27750505503 - 2⁶ = 27750505439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27750505303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1913626 + ... + 1928072.

It is an arithmetic number, because the mean of its divisors is an integer number (914124960).

Almost surely, 2^27750505503 is an apocalyptic number.

27750505503 is a deficient number, since it is larger than the sum of its proper divisors (16127492577).

27750505503 is a wasteful number, since it uses less digits than its factorization.

27750505503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14716 (or 14709 counting only the distinct ones).

The product of its (nonzero) digits is 183750, while the sum is 39.

The spelling of 27750505503 in words is "twenty-seven billion, seven hundred fifty million, five hundred five thousand, five hundred three".