5078657257 has 2 divisors, whose sum is σ = 5078657258. Its totient is φ = 5078657256.

The previous prime is 5078657251. The next prime is 5078657281. The reversal of 5078657257 is 7527568705.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3907375081 + 1171282176 = 62509^2 + 34224^2 .

It is a cyclic number.

It is not a de Polignac number, because 5078657257 - 2¹¹ = 5078655209 is a prime.

It is not a weakly prime, because it can be changed into another prime (5078657251) 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 as a sum of consecutive naturals, namely, 2539328628 + 2539328629.

It is an arithmetic number, because the mean of its divisors is an integer number (2539328629).

Almost surely, 2^5078657257 is an apocalyptic number.

It is an amenable number.

5078657257 is a deficient number, since it is larger than the sum of its proper divisors (1).

5078657257 is an equidigital number, since it uses as much as digits as its factorization.

5078657257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4116000, while the sum is 52.

The square root of 5078657257 is about 71264.6985330044. The cubic root of 5078657257 is about 1718.8961342600.

The spelling of 5078657257 in words is "five billion, seventy-eight million, six hundred fifty-seven thousand, two hundred fifty-seven".