25165341503 has 2 divisors, whose sum is σ = 25165341504. Its totient is φ = 25165341502.

The previous prime is 25165341491. The next prime is 25165341557. The reversal of 25165341503 is 30514356152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25165341503 - 2²⁰ = 25164292927 is a prime.

It is a super-2 number, since 2×25165341503² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25165341703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12582670751 + 12582670752.

It is an arithmetic number, because the mean of its divisors is an integer number (12582670752).

Almost surely, 2^25165341503 is an apocalyptic number.

25165341503 is a deficient number, since it is larger than the sum of its proper divisors (1).

25165341503 is an equidigital number, since it uses as much as digits as its factorization.

25165341503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 25165341503 its reverse (30514356152), we get a palindrome (55679697655).

The spelling of 25165341503 in words is "twenty-five billion, one hundred sixty-five million, three hundred forty-one thousand, five hundred three".