19825219 has 2 divisors, whose sum is σ = 19825220. Its totient is φ = 19825218.

The previous prime is 19825207. The next prime is 19825231. The reversal of 19825219 is 91252891.

It is a balanced prime because it is at equal distance from previous prime (19825207) and next prime (19825231).

It is a cyclic number.

It is not a de Polignac number, because 19825219 - 2²³ = 11436611 is a prime.

It is a super-2 number, since 2×19825219² = 786078616795922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19825249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9912609 + 9912610.

It is an arithmetic number, because the mean of its divisors is an integer number (9912610).

Almost surely, 2^19825219 is an apocalyptic number.

19825219 is a deficient number, since it is larger than the sum of its proper divisors (1).

19825219 is an equidigital number, since it uses as much as digits as its factorization.

19825219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 37.

The square root of 19825219 is about 4452.5519648849. The cubic root of 19825219 is about 270.6487326711.

The spelling of 19825219 in words is "nineteen million, eight hundred twenty-five thousand, two hundred nineteen".