5239744457 has 2 divisors, whose sum is σ = 5239744458. Its totient is φ = 5239744456.

The previous prime is 5239744451. The next prime is 5239744481. The reversal of 5239744457 is 7544479325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4151998096 + 1087746361 = 64436^2 + 32981^2 .

It is a cyclic number.

It is not a de Polignac number, because 5239744457 - 2¹⁰ = 5239743433 is a prime.

It is not a weakly prime, because it can be changed into another prime (5239744451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2619872228 + 2619872229.

It is an arithmetic number, because the mean of its divisors is an integer number (2619872229).

Almost surely, 2^5239744457 is an apocalyptic number.

It is an amenable number.

5239744457 is a deficient number, since it is larger than the sum of its proper divisors (1).

5239744457 is an equidigital number, since it uses as much as digits as its factorization.

5239744457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4233600, while the sum is 50.

The square root of 5239744457 is about 72386.0791658175. The cubic root of 5239744457 is about 1736.8808850356.

The spelling of 5239744457 in words is "five billion, two hundred thirty-nine million, seven hundred forty-four thousand, four hundred fifty-seven".