54206417197 has 2 divisors, whose sum is σ = 54206417198. Its totient is φ = 54206417196.

The previous prime is 54206417183. The next prime is 54206417219. The reversal of 54206417197 is 79171460245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39532971241 + 14673445956 = 198829^2 + 121134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54206417197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54206417297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27103208598 + 27103208599.

It is an arithmetic number, because the mean of its divisors is an integer number (27103208599).

Almost surely, 2^54206417197 is an apocalyptic number.

It is an amenable number.

54206417197 is a deficient number, since it is larger than the sum of its proper divisors (1).

54206417197 is an equidigital number, since it uses as much as digits as its factorization.

54206417197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 54206417197 in words is "fifty-four billion, two hundred six million, four hundred seventeen thousand, one hundred ninety-seven".