27705455503 has 16 divisors (see below), whose sum is σ = 30318393600. Its totient is φ = 25108332480.

The previous prime is 27705455489. The next prime is 27705455567. The reversal of 27705455503 is 30555450772.

It is not a de Polignac number, because 27705455503 - 2⁵ = 27705455471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27705455503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27705459503) 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 15 ways as a sum of consecutive naturals, for example, 10521075 + ... + 10523707.

It is an arithmetic number, because the mean of its divisors is an integer number (1894899600).

Almost surely, 2^27705455503 is an apocalyptic number.

27705455503 is a deficient number, since it is larger than the sum of its proper divisors (2612938097).

27705455503 is a wasteful number, since it uses less digits than its factorization.

27705455503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5262.

The product of its (nonzero) digits is 735000, while the sum is 43.

The spelling of 27705455503 in words is "twenty-seven billion, seven hundred five million, four hundred fifty-five thousand, five hundred three".