5157857 has 2 divisors, whose sum is σ = 5157858. Its totient is φ = 5157856.

The previous prime is 5157847. The next prime is 5157877. The reversal of 5157857 is 7587515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5058001 + 99856 = 2249^2 + 316^2 .

It is a cyclic number.

It is not a de Polignac number, because 5157857 - 2⁶ = 5157793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5157857.

It is not a weakly prime, because it can be changed into another prime (5157847) 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 as a sum of consecutive naturals, namely, 2578928 + 2578929.

It is an arithmetic number, because the mean of its divisors is an integer number (2578929).

Almost surely, 2^5157857 is an apocalyptic number.

It is an amenable number.

5157857 is a deficient number, since it is larger than the sum of its proper divisors (1).

5157857 is an equidigital number, since it uses as much as digits as its factorization.

5157857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49000, while the sum is 38.

The square root of 5157857 is about 2271.0915877613. The cubic root of 5157857 is about 172.7785264419.

The spelling of 5157857 in words is "five million, one hundred fifty-seven thousand, eight hundred fifty-seven".