5171135657 has 4 divisors (see below), whose sum is σ = 5197929300. Its totient is φ = 5144342016.

The previous prime is 5171135647. The next prime is 5171135677. The reversal of 5171135657 is 7565311715.

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 457489321 + 4713646336 = 21389^2 + 68656^2 .

It is a cyclic number.

It is not a de Polignac number, because 5171135657 - 2⁸ = 5171135401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5171135647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13396532 + ... + 13396917.

It is an arithmetic number, because the mean of its divisors is an integer number (1299482325).

Almost surely, 2^5171135657 is an apocalyptic number.

It is an amenable number.

5171135657 is a deficient number, since it is larger than the sum of its proper divisors (26793643).

5171135657 is a wasteful number, since it uses less digits than its factorization.

5171135657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26793642.

The product of its digits is 110250, while the sum is 41.

The square root of 5171135657 is about 71910.6087931398. The cubic root of 5171135657 is about 1729.2666941246.

The spelling of 5171135657 in words is "five billion, one hundred seventy-one million, one hundred thirty-five thousand, six hundred fifty-seven".