5257387973 has 2 divisors, whose sum is σ = 5257387974. Its totient is φ = 5257387972.

The previous prime is 5257387963. The next prime is 5257387981. The reversal of 5257387973 is 3797837525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3020381764 + 2237006209 = 54958^2 + 47297^2 .

It is a cyclic number.

It is not a de Polignac number, because 5257387973 - 2⁴ = 5257387957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5257387943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2628693986 + 2628693987.

It is an arithmetic number, because the mean of its divisors is an integer number (2628693987).

Almost surely, 2^5257387973 is an apocalyptic number.

It is an amenable number.

5257387973 is a deficient number, since it is larger than the sum of its proper divisors (1).

5257387973 is an equidigital number, since it uses as much as digits as its factorization.

5257387973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11113200, while the sum is 56.

The square root of 5257387973 is about 72507.8476649252. The cubic root of 5257387973 is about 1738.8282035265.

The spelling of 5257387973 in words is "five billion, two hundred fifty-seven million, three hundred eighty-seven thousand, nine hundred seventy-three".