5660819249 has 4 divisors (see below), whose sum is σ = 5666408436. Its totient is φ = 5655230064.

The previous prime is 5660819243. The next prime is 5660819257. The reversal of 5660819249 is 9429180665.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1917826849 + 3742992400 = 43793^2 + 61180^2 .

It is a cyclic number.

It is not a de Polignac number, because 5660819249 - 2⁴ = 5660819233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5660819197 and 5660819206.

It is not an unprimeable number, because it can be changed into a prime (5660819243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2793074 + ... + 2795099.

It is an arithmetic number, because the mean of its divisors is an integer number (1416602109).

Almost surely, 2^5660819249 is an apocalyptic number.

It is an amenable number.

5660819249 is a deficient number, since it is larger than the sum of its proper divisors (5589187).

5660819249 is a wasteful number, since it uses less digits than its factorization.

5660819249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5589186.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 5660819249 is about 75238.4160452624. The cubic root of 5660819249 is about 1782.2136379164.

It can be divided in two parts, 56608 and 19249, that added together give a palindrome (75857).

The spelling of 5660819249 in words is "five billion, six hundred sixty million, eight hundred nineteen thousand, two hundred forty-nine".