54730209 has 4 divisors (see below), whose sum is σ = 72973616. Its totient is φ = 36486804.

The previous prime is 54730201. The next prime is 54730211. The reversal of 54730209 is 90203745.

54730209 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 54730209 - 2³ = 54730201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54730201) 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, 9121699 + ... + 9121704.

It is an arithmetic number, because the mean of its divisors is an integer number (18243404).

Almost surely, 2^54730209 is an apocalyptic number.

It is an amenable number.

54730209 is a deficient number, since it is larger than the sum of its proper divisors (18243407).

54730209 is a wasteful number, since it uses less digits than its factorization.

54730209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18243406.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 54730209 is about 7397.9868207506. The cubic root of 54730209 is about 379.6724069565.

The spelling of 54730209 in words is "fifty-four million, seven hundred thirty thousand, two hundred nine".