425685361 has 2 divisors, whose sum is σ = 425685362. Its totient is φ = 425685360.

The previous prime is 425685313. The next prime is 425685383. The reversal of 425685361 is 163586524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268960000 + 156725361 = 16400^2 + 12519^2 .

It is a cyclic number.

It is not a de Polignac number, because 425685361 - 2¹⁷ = 425554289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (425685061) 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, 212842680 + 212842681.

It is an arithmetic number, because the mean of its divisors is an integer number (212842681).

Almost surely, 2^425685361 is an apocalyptic number.

It is an amenable number.

425685361 is a deficient number, since it is larger than the sum of its proper divisors (1).

425685361 is an equidigital number, since it uses as much as digits as its factorization.

425685361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 40.

The square root of 425685361 is about 20632.1438779396. The cubic root of 425685361 is about 752.2512275752.

The spelling of 425685361 in words is "four hundred twenty-five million, six hundred eighty-five thousand, three hundred sixty-one".