5545817999 has 4 divisors (see below), whose sum is σ = 5561266320. Its totient is φ = 5530369680.

The previous prime is 5545817993. The next prime is 5545818011. The reversal of 5545817999 is 9997185455.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5545817999 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 (5545817993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7723622 + ... + 7724339.

It is an arithmetic number, because the mean of its divisors is an integer number (1390316580).

Almost surely, 2^5545817999 is an apocalyptic number.

5545817999 is a deficient number, since it is larger than the sum of its proper divisors (15448321).

5545817999 is a wasteful number, since it uses less digits than its factorization.

5545817999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15448320.

The product of its digits is 20412000, while the sum is 62.

The square root of 5545817999 is about 74470.2490864641. The cubic root of 5545817999 is about 1770.0622403555.

The spelling of 5545817999 in words is "five billion, five hundred forty-five million, eight hundred seventeen thousand, nine hundred ninety-nine".