425161717 has 2 divisors, whose sum is σ = 425161718. Its totient is φ = 425161716.

The previous prime is 425161673. The next prime is 425161741. The reversal of 425161717 is 717161524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 266048721 + 159112996 = 16311^2 + 12614^2 .

It is a cyclic number.

It is not a de Polignac number, because 425161717 - 2⁷ = 425161589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425161747) 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, 212580858 + 212580859.

It is an arithmetic number, because the mean of its divisors is an integer number (212580859).

Almost surely, 2^425161717 is an apocalyptic number.

It is an amenable number.

425161717 is a deficient number, since it is larger than the sum of its proper divisors (1).

425161717 is an equidigital number, since it uses as much as digits as its factorization.

425161717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 34.

The square root of 425161717 is about 20619.4499684157. The cubic root of 425161717 is about 751.9426479622.

The spelling of 425161717 in words is "four hundred twenty-five million, one hundred sixty-one thousand, seven hundred seventeen".