54541351217 has 2 divisors, whose sum is σ = 54541351218. Its totient is φ = 54541351216.

The previous prime is 54541351169. The next prime is 54541351253. The reversal of 54541351217 is 71215314545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29819763856 + 24721587361 = 172684^2 + 157231^2 .

It is a cyclic number.

It is not a de Polignac number, because 54541351217 - 2⁶ = 54541351153 is a prime.

It is a super-2 number, since 2×54541351217² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54541351817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27270675608 + 27270675609.

It is an arithmetic number, because the mean of its divisors is an integer number (27270675609).

Almost surely, 2^54541351217 is an apocalyptic number.

It is an amenable number.

54541351217 is a deficient number, since it is larger than the sum of its proper divisors (1).

54541351217 is an equidigital number, since it uses as much as digits as its factorization.

54541351217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84000, while the sum is 38.

The spelling of 54541351217 in words is "fifty-four billion, five hundred forty-one million, three hundred fifty-one thousand, two hundred seventeen".