5540543 has 4 divisors (see below), whose sum is σ = 5597760. Its totient is φ = 5483328.

The previous prime is 5540531. The next prime is 5540573. The reversal of 5540543 is 3450455.

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 5540543 - 2⁸ = 5540287 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5540573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28463 + ... + 28656.

It is an arithmetic number, because the mean of its divisors is an integer number (1399440).

Almost surely, 2^5540543 is an apocalyptic number.

5540543 is a deficient number, since it is larger than the sum of its proper divisors (57217).

5540543 is an equidigital number, since it uses as much as digits as its factorization.

5540543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57216.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 5540543 is about 2353.8358056585. The cubic root of 5540543 is about 176.9500854071.

Adding to 5540543 its reverse (3450455), we get a palindrome (8990998).

The spelling of 5540543 in words is "five million, five hundred forty thousand, five hundred forty-three".