54205009 has 4 divisors (see below), whose sum is σ = 54600804. Its totient is φ = 53809216.

The previous prime is 54205003. The next prime is 54205097. The reversal of 54205009 is 90050245.

54205009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47651409 + 6553600 = 6903^2 + 2560^2 .

It is not a de Polignac number, because 54205009 - 2³ = 54205001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54205001) 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 in 3 ways as a sum of consecutive naturals, for example, 197692 + ... + 197965.

It is an arithmetic number, because the mean of its divisors is an integer number (13650201).

Almost surely, 2^54205009 is an apocalyptic number.

It is an amenable number.

54205009 is a deficient number, since it is larger than the sum of its proper divisors (395795).

54205009 is a wasteful number, since it uses less digits than its factorization.

54205009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395794.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 54205009 is about 7362.4051097450. The cubic root of 54205009 is about 378.4540352886.

The spelling of 54205009 in words is "fifty-four million, two hundred five thousand, nine".