51025002103 has 2 divisors, whose sum is σ = 51025002104. Its totient is φ = 51025002102.

The previous prime is 51025002097. The next prime is 51025002131. The reversal of 51025002103 is 30120052015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51025002103 - 2²⁵ = 50991447671 is a prime.

It is a super-2 number, since 2×51025002103² (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 (51025002143) 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, 25512501051 + 25512501052.

It is an arithmetic number, because the mean of its divisors is an integer number (25512501052).

Almost surely, 2^51025002103 is an apocalyptic number.

51025002103 is a deficient number, since it is larger than the sum of its proper divisors (1).

51025002103 is an equidigital number, since it uses as much as digits as its factorization.

51025002103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 19.

Adding to 51025002103 its reverse (30120052015), we get a palindrome (81145054118).

The spelling of 51025002103 in words is "fifty-one billion, twenty-five million, two thousand, one hundred three".