5539999 has 2 divisors, whose sum is σ = 5540000. Its totient is φ = 5539998.

The previous prime is 5539997. The next prime is 5540023. The reversal of 5539999 is 9999355.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5539999 - 2¹ = 5539997 is a prime.

Together with 5539997, it forms a pair of twin primes.

5539999 is a modest number, since divided by 9999 gives 553 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5539997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2769999 + 2770000.

It is an arithmetic number, because the mean of its divisors is an integer number (2770000).

Almost surely, 2^5539999 is an apocalyptic number.

5539999 is a deficient number, since it is larger than the sum of its proper divisors (1).

5539999 is an equidigital number, since it uses as much as digits as its factorization.

5539999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 492075, while the sum is 49.

The square root of 5539999 is about 2353.7202467583. The cubic root of 5539999 is about 176.9442939171.

The spelling of 5539999 in words is "five million, five hundred thirty-nine thousand, nine hundred ninety-nine".