27565725127 has 2 divisors, whose sum is σ = 27565725128. Its totient is φ = 27565725126.

The previous prime is 27565725073. The next prime is 27565725137. The reversal of 27565725127 is 72152756572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27565725127 - 2⁷ = 27565724999 is a prime.

It is a super-2 number, since 2×27565725127² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27565725137) 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 as a sum of consecutive naturals, namely, 13782862563 + 13782862564.

It is an arithmetic number, because the mean of its divisors is an integer number (13782862564).

Almost surely, 2^27565725127 is an apocalyptic number.

27565725127 is a deficient number, since it is larger than the sum of its proper divisors (1).

27565725127 is an equidigital number, since it uses as much as digits as its factorization.

27565725127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2058000, while the sum is 49.

The spelling of 27565725127 in words is "twenty-seven billion, five hundred sixty-five million, seven hundred twenty-five thousand, one hundred twenty-seven".