55055055105551 has 2 divisors, whose sum is σ = 55055055105552. Its totient is φ = 55055055105550.

The previous prime is 55055055105473. The next prime is 55055055105559. The reversal of 55055055105551 is 15550155055055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55055055105551 - 2¹⁰ = 55055055104527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55055055105496 and 55055055105505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55055055105559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27527527552775 + 27527527552776.

It is an arithmetic number, because the mean of its divisors is an integer number (27527527552776).

Almost surely, 2^{55055055105551} is an apocalyptic number.

55055055105551 is a deficient number, since it is larger than the sum of its proper divisors (1).

55055055105551 is an equidigital number, since it uses as much as digits as its factorization.

55055055105551 is an evil number, because the sum of its binary digits is even.

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

The spelling of 55055055105551 in words is "fifty-five trillion, fifty-five billion, fifty-five million, one hundred five thousand, five hundred fifty-one".