54508309 has 2 divisors, whose sum is σ = 54508310. Its totient is φ = 54508308.

The previous prime is 54508303. The next prime is 54508339. The reversal of 54508309 is 90380545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54022500 + 485809 = 7350^2 + 697^2 .

It is a cyclic number.

It is not a de Polignac number, because 54508309 - 2¹⁵ = 54475541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54508303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27254154 + 27254155.

It is an arithmetic number, because the mean of its divisors is an integer number (27254155).

Almost surely, 2^54508309 is an apocalyptic number.

It is an amenable number.

54508309 is a deficient number, since it is larger than the sum of its proper divisors (1).

54508309 is an equidigital number, since it uses as much as digits as its factorization.

54508309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 54508309 is about 7382.9742651590. The cubic root of 54508309 is about 379.1585930629.

The spelling of 54508309 in words is "fifty-four million, five hundred eight thousand, three hundred nine".