54455309 has 2 divisors, whose sum is σ = 54455310. Its totient is φ = 54455308.

The previous prime is 54455279. The next prime is 54455321. The reversal of 54455309 is 90355445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41242084 + 13213225 = 6422^2 + 3635^2 .

It is a cyclic number.

It is not a de Polignac number, because 54455309 - 2¹² = 54451213 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54455909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27227654 + 27227655.

It is an arithmetic number, because the mean of its divisors is an integer number (27227655).

Almost surely, 2^54455309 is an apocalyptic number.

It is an amenable number.

54455309 is a deficient number, since it is larger than the sum of its proper divisors (1).

54455309 is an equidigital number, since it uses as much as digits as its factorization.

54455309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 54455309 is about 7379.3840528868. The cubic root of 54455309 is about 379.0356642689.

The spelling of 54455309 in words is "fifty-four million, four hundred fifty-five thousand, three hundred nine".