54505543 has 4 divisors (see below), whose sum is σ = 54564408. Its totient is φ = 54446680.

The previous prime is 54505537. The next prime is 54505573. The reversal of 54505543 is 34550545.

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 54505543 - 2⁵ = 54505511 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 (54505573) 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, 28021 + ... + 29902.

It is an arithmetic number, because the mean of its divisors is an integer number (13641102).

Almost surely, 2^54505543 is an apocalyptic number.

54505543 is a deficient number, since it is larger than the sum of its proper divisors (58865).

54505543 is an equidigital number, since it uses as much as digits as its factorization.

54505543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58864.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 54505543 is about 7382.7869399028. The cubic root of 54505543 is about 379.1521795428.

The spelling of 54505543 in words is "fifty-four million, five hundred five thousand, five hundred forty-three".