25983619 has 2 divisors, whose sum is σ = 25983620. Its totient is φ = 25983618.

The previous prime is 25983613. The next prime is 25983631. The reversal of 25983619 is 91638952.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25983619 - 2¹⁹ = 25459331 is a prime.

It is a super-2 number, since 2×25983619² = 1350296912674322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25983613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12991809 + 12991810.

It is an arithmetic number, because the mean of its divisors is an integer number (12991810).

Almost surely, 2^25983619 is an apocalyptic number.

25983619 is a deficient number, since it is larger than the sum of its proper divisors (1).

25983619 is an equidigital number, since it uses as much as digits as its factorization.

25983619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 43.

The square root of 25983619 is about 5097.4129713022. The cubic root of 25983619 is about 296.1873775545.

The spelling of 25983619 in words is "twenty-five million, nine hundred eighty-three thousand, six hundred nineteen".