425315797 has 2 divisors, whose sum is σ = 425315798. Its totient is φ = 425315796.

The previous prime is 425315771. The next prime is 425315899. The reversal of 425315797 is 797513524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 423083761 + 2232036 = 20569^2 + 1494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425315797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425315717) 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, 212657898 + 212657899.

It is an arithmetic number, because the mean of its divisors is an integer number (212657899).

Almost surely, 2^425315797 is an apocalyptic number.

It is an amenable number.

425315797 is a deficient number, since it is larger than the sum of its proper divisors (1).

425315797 is an equidigital number, since it uses as much as digits as its factorization.

425315797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264600, while the sum is 43.

The square root of 425315797 is about 20623.1859080987. The cubic root of 425315797 is about 752.0334724849.

The spelling of 425315797 in words is "four hundred twenty-five million, three hundred fifteen thousand, seven hundred ninety-seven".