25317419 has 2 divisors, whose sum is σ = 25317420. Its totient is φ = 25317418.

The previous prime is 25317389. The next prime is 25317451. The reversal of 25317419 is 91471352.

It is an a-pointer prime, because the next prime (25317451) can be obtained adding 25317419 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25317419 - 2¹⁶ = 25251883 is a prime.

It is a super-2 number, since 2×25317419² = 1281943409643122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25317469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12658709 + 12658710.

It is an arithmetic number, because the mean of its divisors is an integer number (12658710).

Almost surely, 2^25317419 is an apocalyptic number.

25317419 is a deficient number, since it is larger than the sum of its proper divisors (1).

25317419 is an equidigital number, since it uses as much as digits as its factorization.

25317419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 25317419 is about 5031.6417797773. The cubic root of 25317419 is about 293.6340913461.

The spelling of 25317419 in words is "twenty-five million, three hundred seventeen thousand, four hundred nineteen".