54533393 has 4 divisors (see below), whose sum is σ = 54663348. Its totient is φ = 54403440.

The previous prime is 54533387. The next prime is 54533429. The reversal of 54533393 is 39333545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39333545 = 5 ⋅7866709.

It can be written as a sum of positive squares in 2 ways, for example, as 23541904 + 30991489 = 4852^2 + 5567^2 .

It is a cyclic number.

It is not a de Polignac number, because 54533393 - 2¹⁰ = 54532369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54533333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64346 + ... + 65187.

It is an arithmetic number, because the mean of its divisors is an integer number (13665837).

Almost surely, 2^54533393 is an apocalyptic number.

It is an amenable number.

54533393 is a deficient number, since it is larger than the sum of its proper divisors (129955).

54533393 is a wasteful number, since it uses less digits than its factorization.

54533393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129954.

The product of its digits is 72900, while the sum is 35.

The square root of 54533393 is about 7384.6728431258. The cubic root of 54533393 is about 379.2167453935.

The spelling of 54533393 in words is "fifty-four million, five hundred thirty-three thousand, three hundred ninety-three".