25102136103 has 16 divisors (see below), whose sum is σ = 36515308032. Its totient is φ = 15212120000.

The previous prime is 25102136099. The next prime is 25102136113. The reversal of 25102136103 is 30163120152.

It is not a de Polignac number, because 25102136103 - 2² = 25102136099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25102136113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483538 + ... + 532928.

It is an arithmetic number, because the mean of its divisors is an integer number (2282206752).

Almost surely, 2^25102136103 is an apocalyptic number.

25102136103 is a deficient number, since it is larger than the sum of its proper divisors (11413171929).

25102136103 is a wasteful number, since it uses less digits than its factorization.

25102136103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64806.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 25102136103 its reverse (30163120152), we get a palindrome (55265256255).

The spelling of 25102136103 in words is "twenty-five billion, one hundred two million, one hundred thirty-six thousand, one hundred three".