425333231 has 2 divisors, whose sum is σ = 425333232. Its totient is φ = 425333230.

The previous prime is 425333213. The next prime is 425333257. The reversal of 425333231 is 132333524.

It is a happy number.

Together with previous prime (425333213) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (425333257) can be obtained adding 425333231 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425333231 - 2¹⁴ = 425316847 is a prime.

It is a super-2 number, since 2×425333231² = 361816714785798722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 425333231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425333261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212666615 + 212666616.

It is an arithmetic number, because the mean of its divisors is an integer number (212666616).

Almost surely, 2^425333231 is an apocalyptic number.

425333231 is a deficient number, since it is larger than the sum of its proper divisors (1).

425333231 is an equidigital number, since it uses as much as digits as its factorization.

425333231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 26.

The square root of 425333231 is about 20623.6085833687. The cubic root of 425333231 is about 752.0437478086.

Adding to 425333231 its reverse (132333524), we get a palindrome (557666755).

The spelling of 425333231 in words is "four hundred twenty-five million, three hundred thirty-three thousand, two hundred thirty-one".