54421111973 has 2 divisors, whose sum is σ = 54421111974. Its totient is φ = 54421111972.

The previous prime is 54421111963. The next prime is 54421112021. The reversal of 54421111973 is 37911112445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36619415044 + 17801696929 = 191362^2 + 133423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54421111973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54421111963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27210555986 + 27210555987.

It is an arithmetic number, because the mean of its divisors is an integer number (27210555987).

Almost surely, 2^54421111973 is an apocalyptic number.

It is an amenable number.

54421111973 is a deficient number, since it is larger than the sum of its proper divisors (1).

54421111973 is an equidigital number, since it uses as much as digits as its factorization.

54421111973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The spelling of 54421111973 in words is "fifty-four billion, four hundred twenty-one million, one hundred eleven thousand, nine hundred seventy-three".