54778379 has 2 divisors, whose sum is σ = 54778380. Its totient is φ = 54778378.

The previous prime is 54778357. The next prime is 54778391. The reversal of 54778379 is 97387745.

54778379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54778379 - 2⁸ = 54778123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54778319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27389189 + 27389190.

It is an arithmetic number, because the mean of its divisors is an integer number (27389190).

Almost surely, 2^54778379 is an apocalyptic number.

54778379 is a deficient number, since it is larger than the sum of its proper divisors (1).

54778379 is an equidigital number, since it uses as much as digits as its factorization.

54778379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1481760, while the sum is 50.

The square root of 54778379 is about 7401.2417201440. The cubic root of 54778379 is about 379.7837620152.

The spelling of 54778379 in words is "fifty-four million, seven hundred seventy-eight thousand, three hundred seventy-nine".