2005015551271 has 2 divisors, whose sum is σ = 2005015551272. Its totient is φ = 2005015551270.

The previous prime is 2005015551239. The next prime is 2005015551299. The reversal of 2005015551271 is 1721555105002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2005015551271 - 2⁵ = 2005015551239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2005015555271) 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 as a sum of consecutive naturals, namely, 1002507775635 + 1002507775636.

It is an arithmetic number, because the mean of its divisors is an integer number (1002507775636).

Almost surely, 2^{2005015551271} is an apocalyptic number.

2005015551271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005015551271 is an equidigital number, since it uses as much as digits as its factorization.

2005015551271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17500, while the sum is 34.

The spelling of 2005015551271 in words is "two trillion, five billion, fifteen million, five hundred fifty-one thousand, two hundred seventy-one".