5171222257 has 4 divisors (see below), whose sum is σ = 5173364196. Its totient is φ = 5169080320.

The previous prime is 5171222239. The next prime is 5171222263. The reversal of 5171222257 is 7522221715.

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 5067161856 + 104060401 = 71184^2 + 10201^2 .

It is a cyclic number.

It is not a de Polignac number, because 5171222257 - 2¹⁹ = 5170697969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5171222297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067344 + ... + 1072177.

It is an arithmetic number, because the mean of its divisors is an integer number (1293341049).

Almost surely, 2^5171222257 is an apocalyptic number.

It is an amenable number.

5171222257 is a deficient number, since it is larger than the sum of its proper divisors (2141939).

5171222257 is a wasteful number, since it uses less digits than its factorization.

5171222257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141938.

The product of its digits is 19600, while the sum is 34.

The square root of 5171222257 is about 71911.2109270870. The cubic root of 5171222257 is about 1729.2763473014.

The spelling of 5171222257 in words is "five billion, one hundred seventy-one million, two hundred twenty-two thousand, two hundred fifty-seven".