5581111127 has 2 divisors, whose sum is σ = 5581111128. Its totient is φ = 5581111126.

The previous prime is 5581111079. The next prime is 5581111141. The reversal of 5581111127 is 7211111855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5581111127 - 2¹² = 5581107031 is a prime.

It is a super-2 number, since 2×5581111127² = 62297602823846420258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5581111093 and 5581111102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5581111147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2790555563 + 2790555564.

It is an arithmetic number, because the mean of its divisors is an integer number (2790555564).

Almost surely, 2^5581111127 is an apocalyptic number.

5581111127 is a deficient number, since it is larger than the sum of its proper divisors (1).

5581111127 is an equidigital number, since it uses as much as digits as its factorization.

5581111127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2800, while the sum is 32.

The square root of 5581111127 is about 74706.8345400874. The cubic root of 5581111127 is about 1773.8091465594.

The spelling of 5581111127 in words is "five billion, five hundred eighty-one million, one hundred eleven thousand, one hundred twenty-seven".