5259851257 has 2 divisors, whose sum is σ = 5259851258. Its totient is φ = 5259851256.

The previous prime is 5259851237. The next prime is 5259851273. The reversal of 5259851257 is 7521589525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4807480896 + 452370361 = 69336^2 + 21269^2 .

It is a cyclic number.

It is not a de Polignac number, because 5259851257 - 2¹¹ = 5259849209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5259851257.

It is not a weakly prime, because it can be changed into another prime (5259851227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2629925628 + 2629925629.

It is an arithmetic number, because the mean of its divisors is an integer number (2629925629).

Almost surely, 2^5259851257 is an apocalyptic number.

It is an amenable number.

5259851257 is a deficient number, since it is larger than the sum of its proper divisors (1).

5259851257 is an equidigital number, since it uses as much as digits as its factorization.

5259851257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260000, while the sum is 49.

The square root of 5259851257 is about 72524.8320025631. The cubic root of 5259851257 is about 1739.0997299282.

The spelling of 5259851257 in words is "five billion, two hundred fifty-nine million, eight hundred fifty-one thousand, two hundred fifty-seven".