5170666257 has 6 divisors (see below), whose sum is σ = 7468740162. Its totient is φ = 3447110832.

The previous prime is 5170666253. The next prime is 5170666283. The reversal of 5170666257 is 7526660715.

It can be written as a sum of positive squares in only one way, i.e., 4602129921 + 568536336 = 67839^2 + 23844^2 .

It is not a de Polignac number, because 5170666257 - 2² = 5170666253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5170666253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 287259228 + ... + 287259245.

It is an arithmetic number, because the mean of its divisors is an integer number (1244790027).

Almost surely, 2^5170666257 is an apocalyptic number.

It is an amenable number.

5170666257 is a deficient number, since it is larger than the sum of its proper divisors (2298073905).

5170666257 is a wasteful number, since it uses less digits than its factorization.

5170666257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574518479 (or 574518476 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The square root of 5170666257 is about 71907.3449447273. The cubic root of 5170666257 is about 1729.2143689101.

The spelling of 5170666257 in words is "five billion, one hundred seventy million, six hundred sixty-six thousand, two hundred fifty-seven".