25823219 has 2 divisors, whose sum is σ = 25823220. Its totient is φ = 25823218.

The previous prime is 25823183. The next prime is 25823269. The reversal of 25823219 is 91232852.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25823219 - 2²⁰ = 24774643 is a prime.

It is a super-2 number, since 2×25823219² = 1333677279043922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25823269) 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, 12911609 + 12911610.

It is an arithmetic number, because the mean of its divisors is an integer number (12911610).

Almost surely, 2^25823219 is an apocalyptic number.

25823219 is a deficient number, since it is larger than the sum of its proper divisors (1).

25823219 is an equidigital number, since it uses as much as digits as its factorization.

25823219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 25823219 is about 5081.6551437499. The cubic root of 25823219 is about 295.5766523834.

The spelling of 25823219 in words is "twenty-five million, eight hundred twenty-three thousand, two hundred nineteen".