54267809 has 2 divisors, whose sum is σ = 54267810. Its totient is φ = 54267808.

The previous prime is 54267793. The next prime is 54267817. The reversal of 54267809 is 90876245.

54267809 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 can be written as a sum of positive squares in only one way, i.e., 47128225 + 7139584 = 6865^2 + 2672^2 .

It is a cyclic number.

It is not a de Polignac number, because 54267809 - 2⁴ = 54267793 is a prime.

It is not a weakly prime, because it can be changed into another prime (54267709) 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, 27133904 + 27133905.

It is an arithmetic number, because the mean of its divisors is an integer number (27133905).

Almost surely, 2^54267809 is an apocalyptic number.

It is an amenable number.

54267809 is a deficient number, since it is larger than the sum of its proper divisors (1).

54267809 is an equidigital number, since it uses as much as digits as its factorization.

54267809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 54267809 is about 7366.6687858217. The cubic root of 54267809 is about 378.6001333538.

The spelling of 54267809 in words is "fifty-four million, two hundred sixty-seven thousand, eight hundred nine".