5257371287 has 4 divisors (see below), whose sum is σ = 6008424336. Its totient is φ = 4506318240.

The previous prime is 5257371283. The next prime is 5257371289. The reversal of 5257371287 is 7821737525.

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

It is a cyclic number.

It is not a de Polignac number, because 5257371287 - 2² = 5257371283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257371283) 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 in 3 ways as a sum of consecutive naturals, for example, 375526514 + ... + 375526527.

It is an arithmetic number, because the mean of its divisors is an integer number (1502106084).

Almost surely, 2^5257371287 is an apocalyptic number.

5257371287 is a deficient number, since it is larger than the sum of its proper divisors (751053049).

5257371287 is an equidigital number, since it uses as much as digits as its factorization.

5257371287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751053048.

The product of its digits is 823200, while the sum is 47.

The square root of 5257371287 is about 72507.7326014267. The cubic root of 5257371287 is about 1738.8263639490.

The spelling of 5257371287 in words is "five billion, two hundred fifty-seven million, three hundred seventy-one thousand, two hundred eighty-seven".