54123513193 has 2 divisors, whose sum is σ = 54123513194. Its totient is φ = 54123513192.

The previous prime is 54123513137. The next prime is 54123513233. The reversal of 54123513193 is 39131532145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39755175769 + 14368337424 = 199387^2 + 119868^2 .

It is a cyclic number.

It is not a de Polignac number, because 54123513193 - 2²⁵ = 54089958761 is a prime.

It is not a weakly prime, because it can be changed into another prime (54123513113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27061756596 + 27061756597.

It is an arithmetic number, because the mean of its divisors is an integer number (27061756597).

Almost surely, 2^54123513193 is an apocalyptic number.

It is an amenable number.

54123513193 is a deficient number, since it is larger than the sum of its proper divisors (1).

54123513193 is an equidigital number, since it uses as much as digits as its factorization.

54123513193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 37.

The spelling of 54123513193 in words is "fifty-four billion, one hundred twenty-three million, five hundred thirteen thousand, one hundred ninety-three".