54123355249 has 2 divisors, whose sum is σ = 54123355250. Its totient is φ = 54123355248.

The previous prime is 54123355213. The next prime is 54123355261. The reversal of 54123355249 is 94255332145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27379659024 + 26743696225 = 165468^2 + 163535^2 .

It is a cyclic number.

It is not a de Polignac number, because 54123355249 - 2⁹ = 54123354737 is a prime.

It is not a weakly prime, because it can be changed into another prime (54123350249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27061677624 + 27061677625.

It is an arithmetic number, because the mean of its divisors is an integer number (27061677625).

Almost surely, 2^54123355249 is an apocalyptic number.

It is an amenable number.

54123355249 is a deficient number, since it is larger than the sum of its proper divisors (1).

54123355249 is an equidigital number, since it uses as much as digits as its factorization.

54123355249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 43.

The spelling of 54123355249 in words is "fifty-four billion, one hundred twenty-three million, three hundred fifty-five thousand, two hundred forty-nine".