25200013 has 2 divisors, whose sum is σ = 25200014. Its totient is φ = 25200012.

The previous prime is 25200011. The next prime is 25200029. The reversal of 25200013 is 31000252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12830724 + 12369289 = 3582^2 + 3517^2 .

It is a cyclic number.

It is not a de Polignac number, because 25200013 - 2¹ = 25200011 is a prime.

Together with 25200011, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 25199966 and 25200002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25200011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12600006 + 12600007.

It is an arithmetic number, because the mean of its divisors is an integer number (12600007).

Almost surely, 2^25200013 is an apocalyptic number.

It is an amenable number.

25200013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25200013 is an equidigital number, since it uses as much as digits as its factorization.

25200013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 25200013 is about 5019.9614540353. The cubic root of 25200013 is about 293.1794921901.

Adding to 25200013 its reverse (31000252), we get a palindrome (56200265).

The spelling of 25200013 in words is "twenty-five million, two hundred thousand, thirteen".