54421621060349 has 2 divisors, whose sum is σ = 54421621060350. Its totient is φ = 54421621060348.

The previous prime is 54421621060319. The next prime is 54421621060357. The reversal of 54421621060349 is 94306012612445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53762520637849 + 659100422500 = 7332293^2 + 811850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54421621060349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54421621060319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27210810530174 + 27210810530175.

It is an arithmetic number, because the mean of its divisors is an integer number (27210810530175).

Almost surely, 2^{54421621060349} is an apocalyptic number.

It is an amenable number.

54421621060349 is a deficient number, since it is larger than the sum of its proper divisors (1).

54421621060349 is an equidigital number, since it uses as much as digits as its factorization.

54421621060349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 54421621060349 in words is "fifty-four trillion, four hundred twenty-one billion, six hundred twenty-one million, sixty thousand, three hundred forty-nine".