55555050000491 has 2 divisors, whose sum is σ = 55555050000492. Its totient is φ = 55555050000490.

The previous prime is 55555050000473. The next prime is 55555050000493. The reversal of 55555050000491 is 19400005055555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55555050000491 - 2¹⁴ = 55555049984107 is a prime.

Together with 55555050000493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55555050000493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27777525000245 + 27777525000246.

It is an arithmetic number, because the mean of its divisors is an integer number (27777525000246).

Almost surely, 2^{55555050000491} is an apocalyptic number.

55555050000491 is a deficient number, since it is larger than the sum of its proper divisors (1).

55555050000491 is an equidigital number, since it uses as much as digits as its factorization.

55555050000491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 562500, while the sum is 44.

The spelling of 55555050000491 in words is "fifty-five trillion, five hundred fifty-five billion, fifty million, four hundred ninety-one", and thus it is an aban number.