425311517 has 2 divisors, whose sum is σ = 425311518. Its totient is φ = 425311516.

The previous prime is 425311501. The next prime is 425311519. The reversal of 425311517 is 715113524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353214436 + 72097081 = 18794^2 + 8491^2 .

It is a cyclic number.

It is not a de Polignac number, because 425311517 - 2⁴ = 425311501 is a prime.

Together with 425311519, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425311517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425311519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212655758 + 212655759.

It is an arithmetic number, because the mean of its divisors is an integer number (212655759).

Almost surely, 2^425311517 is an apocalyptic number.

It is an amenable number.

425311517 is a deficient number, since it is larger than the sum of its proper divisors (1).

425311517 is an equidigital number, since it uses as much as digits as its factorization.

425311517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 29.

The square root of 425311517 is about 20623.0821411350. The cubic root of 425311517 is about 752.0309498777.

The spelling of 425311517 in words is "four hundred twenty-five million, three hundred eleven thousand, five hundred seventeen".