54190617317 has 2 divisors, whose sum is σ = 54190617318. Its totient is φ = 54190617316.

The previous prime is 54190617289. The next prime is 54190617347. The reversal of 54190617317 is 71371609145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49375506436 + 4815110881 = 222206^2 + 69391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54190617317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54190617347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27095308658 + 27095308659.

It is an arithmetic number, because the mean of its divisors is an integer number (27095308659).

Almost surely, 2^54190617317 is an apocalyptic number.

It is an amenable number.

54190617317 is a deficient number, since it is larger than the sum of its proper divisors (1).

54190617317 is an equidigital number, since it uses as much as digits as its factorization.

54190617317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 54190617317 in words is "fifty-four billion, one hundred ninety million, six hundred seventeen thousand, three hundred seventeen".