27775005503 has 6 divisors (see below), whose sum is σ = 32309700336. Its totient is φ = 23807147532.

The previous prime is 27775005497. The next prime is 27775005509. The reversal of 27775005503 is 30550057772.

It is an interprime number because it is at equal distance from previous prime (27775005497) and next prime (27775005509).

It is not a de Polignac number, because 27775005503 - 2⁴ = 27775005487 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 (27775005509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 283418375 + ... + 283418472.

It is an arithmetic number, because the mean of its divisors is an integer number (5384950056).

Almost surely, 2^27775005503 is an apocalyptic number.

27775005503 is a deficient number, since it is larger than the sum of its proper divisors (4534694833).

27775005503 is an equidigital number, since it uses as much as digits as its factorization.

27775005503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566836861 (or 566836854 counting only the distinct ones).

The product of its (nonzero) digits is 257250, while the sum is 41.

The spelling of 27775005503 in words is "twenty-seven billion, seven hundred seventy-five million, five thousand, five hundred three".