54643174217 has 2 divisors, whose sum is σ = 54643174218. Its totient is φ = 54643174216.

The previous prime is 54643174151. The next prime is 54643174231. The reversal of 54643174217 is 71247134645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27743566096 + 26899608121 = 166564^2 + 164011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54643174217 is a prime.

It is not a weakly prime, because it can be changed into another prime (54643170217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27321587108 + 27321587109.

It is an arithmetic number, because the mean of its divisors is an integer number (27321587109).

Almost surely, 2^54643174217 is an apocalyptic number.

It is an amenable number.

54643174217 is a deficient number, since it is larger than the sum of its proper divisors (1).

54643174217 is an equidigital number, since it uses as much as digits as its factorization.

54643174217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 44.

The spelling of 54643174217 in words is "fifty-four billion, six hundred forty-three million, one hundred seventy-four thousand, two hundred seventeen".