5540539 has 4 divisors (see below), whose sum is σ = 5781456. Its totient is φ = 5299624.

The previous prime is 5540531. The next prime is 5540573. The reversal of 5540539 is 9350455.

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 5540539 - 2³ = 5540531 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5540539.

It is not an unprimeable number, because it can be changed into a prime (5540531) 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, 120424 + ... + 120469.

It is an arithmetic number, because the mean of its divisors is an integer number (1445364).

Almost surely, 2^5540539 is an apocalyptic number.

5540539 is a deficient number, since it is larger than the sum of its proper divisors (240917).

5540539 is a wasteful number, since it uses less digits than its factorization.

5540539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240916.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 5540539 is about 2353.8349559814. The cubic root of 5540539 is about 176.9500428240.

The spelling of 5540539 in words is "five million, five hundred forty thousand, five hundred thirty-nine".