54543309 has 4 divisors (see below), whose sum is σ = 72724416. Its totient is φ = 36362204.

The previous prime is 54543301. The next prime is 54543311. The reversal of 54543309 is 90334545.

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 a cyclic number.

It is not a de Polignac number, because 54543309 - 2³ = 54543301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54543309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54543301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9090549 + ... + 9090554.

It is an arithmetic number, because the mean of its divisors is an integer number (18181104).

Almost surely, 2^54543309 is an apocalyptic number.

It is an amenable number.

54543309 is a deficient number, since it is larger than the sum of its proper divisors (18181107).

54543309 is a wasteful number, since it uses less digits than its factorization.

54543309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18181106.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 54543309 is about 7385.3442032176. The cubic root of 54543309 is about 379.2397287751.

The spelling of 54543309 in words is "fifty-four million, five hundred forty-three thousand, three hundred nine".