54358009 has 2 divisors, whose sum is σ = 54358010. Its totient is φ = 54358008.

The previous prime is 54358001. The next prime is 54358043. The reversal of 54358009 is 90085345.

It is an a-pointer prime, because the next prime (54358043) can be obtained adding 54358009 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43599609 + 10758400 = 6603^2 + 3280^2 .

It is a cyclic number.

It is not a de Polignac number, because 54358009 - 2³ = 54358001 is a prime.

It is not a weakly prime, because it can be changed into another prime (54358001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27179004 + 27179005.

It is an arithmetic number, because the mean of its divisors is an integer number (27179005).

Almost surely, 2^54358009 is an apocalyptic number.

It is an amenable number.

54358009 is a deficient number, since it is larger than the sum of its proper divisors (1).

54358009 is an equidigital number, since it uses as much as digits as its factorization.

54358009 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 54358009 is about 7372.7884141619. The cubic root of 54358009 is about 378.8097777680.

The spelling of 54358009 in words is "fifty-four million, three hundred fifty-eight thousand, nine".