425433919 has 2 divisors, whose sum is σ = 425433920. Its totient is φ = 425433918.

The previous prime is 425433913. The next prime is 425433929. The reversal of 425433919 is 919334524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425433919 - 2⁵ = 425433887 is a prime.

It is a super-2 number, since 2×425433919² = 361988038871397122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425433913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212716959 + 212716960.

It is an arithmetic number, because the mean of its divisors is an integer number (212716960).

Almost surely, 2^425433919 is an apocalyptic number.

425433919 is a deficient number, since it is larger than the sum of its proper divisors (1).

425433919 is an equidigital number, since it uses as much as digits as its factorization.

425433919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 425433919 is about 20626.0495248121. The cubic root of 425433919 is about 752.1030862292.

The spelling of 425433919 in words is "four hundred twenty-five million, four hundred thirty-three thousand, nine hundred nineteen".