425330287 has 2 divisors, whose sum is σ = 425330288. Its totient is φ = 425330286.

The previous prime is 425330231. The next prime is 425330299. The reversal of 425330287 is 782033524.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425330287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425330987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212665143 + 212665144.

It is an arithmetic number, because the mean of its divisors is an integer number (212665144).

Almost surely, 2^425330287 is an apocalyptic number.

425330287 is a deficient number, since it is larger than the sum of its proper divisors (1).

425330287 is an equidigital number, since it uses as much as digits as its factorization.

425330287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 425330287 is about 20623.5372087331. The cubic root of 425330287 is about 752.0420126813.

The spelling of 425330287 in words is "four hundred twenty-five million, three hundred thirty thousand, two hundred eighty-seven".