54075391 has 4 divisors (see below), whose sum is σ = 54111384. Its totient is φ = 54039400.

The previous prime is 54075367. The next prime is 54075403. The reversal of 54075391 is 19357045.

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

It is a cyclic number.

It is not a de Polignac number, because 54075391 - 2¹⁵ = 54042623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54075361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15640 + ... + 18781.

It is an arithmetic number, because the mean of its divisors is an integer number (13527846).

Almost surely, 2^54075391 is an apocalyptic number.

54075391 is a deficient number, since it is larger than the sum of its proper divisors (35993).

54075391 is a wasteful number, since it uses less digits than its factorization.

54075391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35992.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 54075391 is about 7353.5971469751. The cubic root of 54075391 is about 378.1521344824.

The spelling of 54075391 in words is "fifty-four million, seventy-five thousand, three hundred ninety-one".