55050555491 has 2 divisors, whose sum is σ = 55050555492. Its totient is φ = 55050555490.

The previous prime is 55050555433. The next prime is 55050555587. The reversal of 55050555491 is 19455505055.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55050555491 is a prime.

It is not a weakly prime, because it can be changed into another prime (55050555691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27525277745 + 27525277746.

It is an arithmetic number, because the mean of its divisors is an integer number (27525277746).

Almost surely, 2^55050555491 is an apocalyptic number.

55050555491 is a deficient number, since it is larger than the sum of its proper divisors (1).

55050555491 is an equidigital number, since it uses as much as digits as its factorization.

55050555491 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 55050555491 in words is "fifty-five billion, fifty million, five hundred fifty-five thousand, four hundred ninety-one".