54044221573 has 2 divisors, whose sum is σ = 54044221574. Its totient is φ = 54044221572.

The previous prime is 54044221571. The next prime is 54044221577. The reversal of 54044221573 is 37512244045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33071968449 + 20972253124 = 181857^2 + 144818^2 .

It is a cyclic number.

It is not a de Polignac number, because 54044221573 - 2¹ = 54044221571 is a prime.

Together with 54044221571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54044221571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27022110786 + 27022110787.

It is an arithmetic number, because the mean of its divisors is an integer number (27022110787).

Almost surely, 2^54044221573 is an apocalyptic number.

It is an amenable number.

54044221573 is a deficient number, since it is larger than the sum of its proper divisors (1).

54044221573 is an equidigital number, since it uses as much as digits as its factorization.

54044221573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 37.

The spelling of 54044221573 in words is "fifty-four billion, forty-four million, two hundred twenty-one thousand, five hundred seventy-three".