54039543 has 4 divisors (see below), whose sum is σ = 72052728. Its totient is φ = 36026360.

The previous prime is 54039539. The next prime is 54039551. The reversal of 54039543 is 34593045.

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 54039543 - 2² = 54039539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54039533) 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, 9006588 + ... + 9006593.

It is an arithmetic number, because the mean of its divisors is an integer number (18013182).

Almost surely, 2^54039543 is an apocalyptic number.

54039543 is a deficient number, since it is larger than the sum of its proper divisors (18013185).

54039543 is a wasteful number, since it uses less digits than its factorization.

54039543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18013184.

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

The square root of 54039543 is about 7351.1592963287. The cubic root of 54039543 is about 378.0685536760.

The spelling of 54039543 in words is "fifty-four million, thirty-nine thousand, five hundred forty-three".