5147786257 has 2 divisors, whose sum is σ = 5147786258. Its totient is φ = 5147786256.

The previous prime is 5147786227. The next prime is 5147786263. The reversal of 5147786257 is 7526877415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2653383121 + 2494403136 = 51511^2 + 49944^2 .

It is a cyclic number.

It is not a de Polignac number, because 5147786257 - 2⁷ = 5147786129 is a prime.

It is not a weakly prime, because it can be changed into another prime (5147786227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2573893128 + 2573893129.

It is an arithmetic number, because the mean of its divisors is an integer number (2573893129).

Almost surely, 2^5147786257 is an apocalyptic number.

It is an amenable number.

5147786257 is a deficient number, since it is larger than the sum of its proper divisors (1).

5147786257 is an equidigital number, since it uses as much as digits as its factorization.

5147786257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3292800, while the sum is 52.

The square root of 5147786257 is about 71748.0749358476. The cubic root of 5147786257 is about 1726.6600284765.

The spelling of 5147786257 in words is "five billion, one hundred forty-seven million, seven hundred eighty-six thousand, two hundred fifty-seven".