55611111111727 has 2 divisors, whose sum is σ = 55611111111728. Its totient is φ = 55611111111726.

The previous prime is 55611111111553. The next prime is 55611111111779. The reversal of 55611111111727 is 72711111111655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55611111111727 - 2²³ = 55611102723119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55611111111727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55611111141727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27805555555863 + 27805555555864.

It is an arithmetic number, because the mean of its divisors is an integer number (27805555555864).

Almost surely, 2^{55611111111727} is an apocalyptic number.

55611111111727 is a deficient number, since it is larger than the sum of its proper divisors (1).

55611111111727 is an equidigital number, since it uses as much as digits as its factorization.

55611111111727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14700, while the sum is 40.

The spelling of 55611111111727 in words is "fifty-five trillion, six hundred eleven billion, one hundred eleven million, one hundred eleven thousand, seven hundred twenty-seven".