54217073893 has 2 divisors, whose sum is σ = 54217073894. Its totient is φ = 54217073892.

The previous prime is 54217073851. The next prime is 54217073923. The reversal of 54217073893 is 39837071245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38991241444 + 15225832449 = 197462^2 + 123393^2 .

It is a cyclic number.

It is not a de Polignac number, because 54217073893 - 2¹⁷ = 54216942821 is a prime.

It is a super-2 number, since 2×54217073893² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54217074893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27108536946 + 27108536947.

It is an arithmetic number, because the mean of its divisors is an integer number (27108536947).

Almost surely, 2^54217073893 is an apocalyptic number.

It is an amenable number.

54217073893 is a deficient number, since it is larger than the sum of its proper divisors (1).

54217073893 is an equidigital number, since it uses as much as digits as its factorization.

54217073893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 54217073893 in words is "fifty-four billion, two hundred seventeen million, seventy-three thousand, eight hundred ninety-three".