55126828871 has 2 divisors, whose sum is σ = 55126828872. Its totient is φ = 55126828870.

The previous prime is 55126828793. The next prime is 55126828873. The reversal of 55126828871 is 17882862155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55126828871 - 2²⁶ = 55059720007 is a prime.

It is a super-2 number, since 2×55126828871² (a number of 22 digits) contains 22 as substring.

Together with 55126828873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55126828873) 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, 27563414435 + 27563414436.

It is an arithmetic number, because the mean of its divisors is an integer number (27563414436).

Almost surely, 2^55126828871 is an apocalyptic number.

55126828871 is a deficient number, since it is larger than the sum of its proper divisors (1).

55126828871 is an equidigital number, since it uses as much as digits as its factorization.

55126828871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2150400, while the sum is 53.

The spelling of 55126828871 in words is "fifty-five billion, one hundred twenty-six million, eight hundred twenty-eight thousand, eight hundred seventy-one".