425730517 has 2 divisors, whose sum is σ = 425730518. Its totient is φ = 425730516.

The previous prime is 425730497. The next prime is 425730553. The reversal of 425730517 is 715037524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 406990276 + 18740241 = 20174^2 + 4329^2 .

It is a cyclic number.

It is not a de Polignac number, because 425730517 - 2¹¹ = 425728469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425730577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212865258 + 212865259.

It is an arithmetic number, because the mean of its divisors is an integer number (212865259).

Almost surely, 2^425730517 is an apocalyptic number.

It is an amenable number.

425730517 is a deficient number, since it is larger than the sum of its proper divisors (1).

425730517 is an equidigital number, since it uses as much as digits as its factorization.

425730517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 425730517 is about 20633.2381607929. The cubic root of 425730517 is about 752.2778258240.

The spelling of 425730517 in words is "four hundred twenty-five million, seven hundred thirty thousand, five hundred seventeen".