25384393 has 2 divisors, whose sum is σ = 25384394. Its totient is φ = 25384392.

The previous prime is 25384391. The next prime is 25384423. The reversal of 25384393 is 39348352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23155344 + 2229049 = 4812^2 + 1493^2 .

It is a cyclic number.

It is not a de Polignac number, because 25384393 - 2¹ = 25384391 is a prime.

Together with 25384391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25384391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12692196 + 12692197.

It is an arithmetic number, because the mean of its divisors is an integer number (12692197).

Almost surely, 2^25384393 is an apocalyptic number.

It is an amenable number.

25384393 is a deficient number, since it is larger than the sum of its proper divisors (1).

25384393 is an equidigital number, since it uses as much as digits as its factorization.

25384393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 37.

The square root of 25384393 is about 5038.2926671641. The cubic root of 25384393 is about 293.8927871990.

The spelling of 25384393 in words is "twenty-five million, three hundred eighty-four thousand, three hundred ninety-three".