5660819257 has 2 divisors, whose sum is σ = 5660819258. Its totient is φ = 5660819256.

The previous prime is 5660819243. The next prime is 5660819293. The reversal of 5660819257 is 7529180665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5636405776 + 24413481 = 75076^2 + 4941^2 .

It is a cyclic number.

It is not a de Polignac number, because 5660819257 - 2¹¹ = 5660817209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5660819257.

It is not a weakly prime, because it can be changed into another prime (5660810257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830409628 + 2830409629.

It is an arithmetic number, because the mean of its divisors is an integer number (2830409629).

Almost surely, 2^5660819257 is an apocalyptic number.

It is an amenable number.

5660819257 is a deficient number, since it is larger than the sum of its proper divisors (1).

5660819257 is an equidigital number, since it uses as much as digits as its factorization.

5660819257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 5660819257 is about 75238.4160984267. The cubic root of 5660819257 is about 1782.2136387560.

The spelling of 5660819257 in words is "five billion, six hundred sixty million, eight hundred nineteen thousand, two hundred fifty-seven".