425519 has 2 divisors, whose sum is σ = 425520. Its totient is φ = 425518.

The previous prime is 425501. The next prime is 425521. The reversal of 425519 is 915524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425519 - 2¹² = 421423 is a prime.

It is a super-2 number, since 2×425519² = 362132838722, which contains 22 as substring.

Together with 425521, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425549) 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, 212759 + 212760.

It is an arithmetic number, because the mean of its divisors is an integer number (212760).

2⁴²⁵⁵¹⁹ is an apocalyptic number.

425519 is a deficient number, since it is larger than the sum of its proper divisors (1).

425519 is an equidigital number, since it uses as much as digits as its factorization.

425519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 26.

The square root of 425519 is about 652.3181738998. The cubic root of 425519 is about 75.2153219685.

The spelling of 425519 in words is "four hundred twenty-five thousand, five hundred nineteen".