5545731865 has 32 divisors (see below), whose sum is σ = 6998644224. Its totient is φ = 4213658880.

The previous prime is 5545731853. The next prime is 5545731869. The reversal of 5545731865 is 5681375455.

It is not a de Polignac number, because 5545731865 - 2⁵ = 5545731833 is a prime.

It is a Smith number, since the sum of its digits (49) 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 not an unprimeable number, because it can be changed into a prime (5545731869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4964287 + ... + 4965403.

It is an arithmetic number, because the mean of its divisors is an integer number (218707632).

Almost surely, 2^5545731865 is an apocalyptic number.

It is an amenable number.

5545731865 is a deficient number, since it is larger than the sum of its proper divisors (1452912359).

5545731865 is a wasteful number, since it uses less digits than its factorization.

5545731865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777.

The product of its digits is 2520000, while the sum is 49.

The square root of 5545731865 is about 74469.6707727381. The cubic root of 5545731865 is about 1770.0530764937.

The spelling of 5545731865 in words is "five billion, five hundred forty-five million, seven hundred thirty-one thousand, eight hundred sixty-five".