5257422509 has 2 divisors, whose sum is σ = 5257422510. Its totient is φ = 5257422508.

The previous prime is 5257422487. The next prime is 5257422517. The reversal of 5257422509 is 9052247525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4074268900 + 1183153609 = 63830^2 + 34397^2 .

It is a cyclic number.

It is not a de Polignac number, because 5257422509 - 2²⁰ = 5256373933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5257422559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2628711254 + 2628711255.

It is an arithmetic number, because the mean of its divisors is an integer number (2628711255).

Almost surely, 2^5257422509 is an apocalyptic number.

It is an amenable number.

5257422509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5257422509 is an equidigital number, since it uses as much as digits as its factorization.

5257422509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 5257422509 is about 72508.0858180658. The cubic root of 5257422509 is about 1738.8320109964.

The spelling of 5257422509 in words is "five billion, two hundred fifty-seven million, four hundred twenty-two thousand, five hundred nine".