425268247 has 2 divisors, whose sum is σ = 425268248. Its totient is φ = 425268246.

The previous prime is 425268197. The next prime is 425268281. The reversal of 425268247 is 742862524.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425268247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425260247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212634123 + 212634124.

It is an arithmetic number, because the mean of its divisors is an integer number (212634124).

Almost surely, 2^425268247 is an apocalyptic number.

425268247 is a deficient number, since it is larger than the sum of its proper divisors (1).

425268247 is an equidigital number, since it uses as much as digits as its factorization.

425268247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 215040, while the sum is 40.

The square root of 425268247 is about 20622.0330472046. The cubic root of 425268247 is about 752.0054458401.

The spelling of 425268247 in words is "four hundred twenty-five million, two hundred sixty-eight thousand, two hundred forty-seven".