54054454344221 has 2 divisors, whose sum is σ = 54054454344222. Its totient is φ = 54054454344220.

The previous prime is 54054454344217. The next prime is 54054454344379. The reversal of 54054454344221 is 12244345445045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36101904012196 + 17952550332025 = 6008486^2 + 4237045^2 .

It is a cyclic number.

It is not a de Polignac number, because 54054454344221 - 2² = 54054454344217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54054454344211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27027227172110 + 27027227172111.

It is an arithmetic number, because the mean of its divisors is an integer number (27027227172111).

Almost surely, 2^{54054454344221} is an apocalyptic number.

It is an amenable number.

54054454344221 is a deficient number, since it is larger than the sum of its proper divisors (1).

54054454344221 is an equidigital number, since it uses as much as digits as its factorization.

54054454344221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144000, while the sum is 47.

Adding to 54054454344221 its reverse (12244345445045), we get a palindrome (66298799789266).

The spelling of 54054454344221 in words is "fifty-four trillion, fifty-four billion, four hundred fifty-four million, three hundred forty-four thousand, two hundred twenty-one".