425431249 has 2 divisors, whose sum is σ = 425431250. Its totient is φ = 425431248.

The previous prime is 425431243. The next prime is 425431283. The reversal of 425431249 is 942134524.

It is an a-pointer prime, because the next prime (425431283) can be obtained adding 425431249 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341067024 + 84364225 = 18468^2 + 9185^2 .

It is a cyclic number.

It is not a de Polignac number, because 425431249 - 2⁹ = 425430737 is a prime.

It is not a weakly prime, because it can be changed into another prime (425431243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212715624 + 212715625.

It is an arithmetic number, because the mean of its divisors is an integer number (212715625).

Almost surely, 2^425431249 is an apocalyptic number.

It is an amenable number.

425431249 is a deficient number, since it is larger than the sum of its proper divisors (1).

425431249 is an equidigital number, since it uses as much as digits as its factorization.

425431249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 34.

The square root of 425431249 is about 20625.9848007313. The cubic root of 425431249 is about 752.1015128400.

The spelling of 425431249 in words is "four hundred twenty-five million, four hundred thirty-one thousand, two hundred forty-nine".