25203313 has 2 divisors, whose sum is σ = 25203314. Its totient is φ = 25203312.

The previous prime is 25203301. The next prime is 25203319. The reversal of 25203313 is 31330252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22165264 + 3038049 = 4708^2 + 1743^2 .

It is a cyclic number.

It is not a de Polignac number, because 25203313 - 2⁵ = 25203281 is a prime.

It is not a weakly prime, because it can be changed into another prime (25203319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12601656 + 12601657.

It is an arithmetic number, because the mean of its divisors is an integer number (12601657).

Almost surely, 2^25203313 is an apocalyptic number.

It is an amenable number.

25203313 is a deficient number, since it is larger than the sum of its proper divisors (1).

25203313 is an equidigital number, since it uses as much as digits as its factorization.

25203313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 25203313 is about 5020.2901310582. The cubic root of 25203313 is about 293.1922891424.

Adding to 25203313 its reverse (31330252), we get a palindrome (56533565).

The spelling of 25203313 in words is "twenty-five million, two hundred three thousand, three hundred thirteen".