25238315203 has 2 divisors, whose sum is σ = 25238315204. Its totient is φ = 25238315202.

The previous prime is 25238315189. The next prime is 25238315227. The reversal of 25238315203 is 30251383252.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25238315203 is a prime.

It is not a weakly prime, because it can be changed into another prime (25238315903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12619157601 + 12619157602.

It is an arithmetic number, because the mean of its divisors is an integer number (12619157602).

Almost surely, 2^25238315203 is an apocalyptic number.

25238315203 is a deficient number, since it is larger than the sum of its proper divisors (1).

25238315203 is an equidigital number, since it uses as much as digits as its factorization.

25238315203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 25238315203 its reverse (30251383252), we get a palindrome (55489698455).

The spelling of 25238315203 in words is "twenty-five billion, two hundred thirty-eight million, three hundred fifteen thousand, two hundred three".