425417831 has 2 divisors, whose sum is σ = 425417832. Its totient is φ = 425417830.

The previous prime is 425417819. The next prime is 425417857. The reversal of 425417831 is 138714524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425417831 - 2¹⁰ = 425416807 is a prime.

It is a super-2 number, since 2×425417831² = 361960661865489122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 425417791 and 425417800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425417891) 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, 212708915 + 212708916.

It is an arithmetic number, because the mean of its divisors is an integer number (212708916).

Almost surely, 2^425417831 is an apocalyptic number.

425417831 is a deficient number, since it is larger than the sum of its proper divisors (1).

425417831 is an equidigital number, since it uses as much as digits as its factorization.

425417831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 35.

The square root of 425417831 is about 20625.6595288490. The cubic root of 425417831 is about 752.0936057228.

The spelling of 425417831 in words is "four hundred twenty-five million, four hundred seventeen thousand, eight hundred thirty-one".