54843309 has 36 divisors (see below), whose sum is σ = 86903388. Its totient is φ = 33212160.

The previous prime is 54843289. The next prime is 54843317. The reversal of 54843309 is 90334845.

It can be written as a sum of positive squares in 2 ways, for example, as 36542025 + 18301284 = 6045^2 + 4278^2 .

It is not a de Polignac number, because 54843309 - 2¹¹ = 54841261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54843389) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 146847 + ... + 147219.

It is an arithmetic number, because the mean of its divisors is an integer number (2413983).

Almost surely, 2^54843309 is an apocalyptic number.

It is an amenable number.

54843309 is a deficient number, since it is larger than the sum of its proper divisors (32060079).

54843309 is a wasteful number, since it uses less digits than its factorization.

54843309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 54843309 is about 7405.6268472021. The cubic root of 54843309 is about 379.9337580747.

The spelling of 54843309 in words is "fifty-four million, eight hundred forty-three thousand, three hundred nine".