54899909 has 2 divisors, whose sum is σ = 54899910. Its totient is φ = 54899908.

The previous prime is 54899903. The next prime is 54899947. The reversal of 54899909 is 90999845.

54899909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53611684 + 1288225 = 7322^2 + 1135^2 .

It is a cyclic number.

It is not a de Polignac number, because 54899909 - 2⁴ = 54899893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54899903) 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, 27449954 + 27449955.

It is an arithmetic number, because the mean of its divisors is an integer number (27449955).

Almost surely, 2^54899909 is an apocalyptic number.

It is an amenable number.

54899909 is a deficient number, since it is larger than the sum of its proper divisors (1).

54899909 is an equidigital number, since it uses as much as digits as its factorization.

54899909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The square root of 54899909 is about 7409.4472803307. The cubic root of 54899909 is about 380.0644142882.

The spelling of 54899909 in words is "fifty-four million, eight hundred ninety-nine thousand, nine hundred nine".