5257456489 has 2 divisors, whose sum is σ = 5257456490. Its totient is φ = 5257456488.

The previous prime is 5257456441. The next prime is 5257456559. The reversal of 5257456489 is 9846547525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3126710889 + 2130745600 = 55917^2 + 46160^2 .

It is a cyclic number.

It is not a de Polignac number, because 5257456489 - 2⁹ = 5257455977 is a prime.

It is not a weakly prime, because it can be changed into another prime (5257456289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2628728244 + 2628728245.

It is an arithmetic number, because the mean of its divisors is an integer number (2628728245).

Almost surely, 2^5257456489 is an apocalyptic number.

It is an amenable number.

5257456489 is a deficient number, since it is larger than the sum of its proper divisors (1).

5257456489 is an equidigital number, since it uses as much as digits as its factorization.

5257456489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096000, while the sum is 55.

The square root of 5257456489 is about 72508.3201363816. The cubic root of 5257456489 is about 1738.8357571530.

The spelling of 5257456489 in words is "five billion, two hundred fifty-seven million, four hundred fifty-six thousand, four hundred eighty-nine".