424256519 has 2 divisors, whose sum is σ = 424256520. Its totient is φ = 424256518.

The previous prime is 424256489. The next prime is 424256537. The reversal of 424256519 is 915652424.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424256519 is a prime.

It is a super-2 number, since 2×424256519² = 359987187827994722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424256219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212128259 + 212128260.

It is an arithmetic number, because the mean of its divisors is an integer number (212128260).

Almost surely, 2^424256519 is an apocalyptic number.

424256519 is a deficient number, since it is larger than the sum of its proper divisors (1).

424256519 is an equidigital number, since it uses as much as digits as its factorization.

424256519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 38.

The square root of 424256519 is about 20597.4881721049. The cubic root of 424256519 is about 751.4086232363.

The spelling of 424256519 in words is "four hundred twenty-four million, two hundred fifty-six thousand, five hundred nineteen".