55555050055511 has 2 divisors, whose sum is σ = 55555050055512. Its totient is φ = 55555050055510.

The previous prime is 55555050055493. The next prime is 55555050055513. The reversal of 55555050055511 is 11555005055555.

55555050055511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55555050055511 - 2²⁶ = 55554982946647 is a prime.

It is a super-2 number, since 2×55555050055511² (a number of 28 digits) contains 22 as substring.

Together with 55555050055513, 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 (55555050055513) 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, 27777525027755 + 27777525027756.

It is an arithmetic number, because the mean of its divisors is an integer number (27777525027756).

Almost surely, 2^{55555050055511} is an apocalyptic number.

55555050055511 is a deficient number, since it is larger than the sum of its proper divisors (1).

55555050055511 is an equidigital number, since it uses as much as digits as its factorization.

55555050055511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1953125, while the sum is 47.

The spelling of 55555050055511 in words is "fifty-five trillion, five hundred fifty-five billion, fifty million, fifty-five thousand, five hundred eleven".