5545999 has 2 divisors, whose sum is σ = 5546000. Its totient is φ = 5545998.

The previous prime is 5545997. The next prime is 5546027. The reversal of 5545999 is 9995455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5545999 - 2¹ = 5545997 is a prime.

Together with 5545997, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5545997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2772999 + 2773000.

It is an arithmetic number, because the mean of its divisors is an integer number (2773000).

Almost surely, 2^5545999 is an apocalyptic number.

5545999 is a deficient number, since it is larger than the sum of its proper divisors (1).

5545999 is an equidigital number, since it uses as much as digits as its factorization.

5545999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 364500, while the sum is 46.

The square root of 5545999 is about 2354.9944798237. The cubic root of 5545999 is about 177.0081496881.

The spelling of 5545999 in words is "five million, five hundred forty-five thousand, nine hundred ninety-nine".