51025002104 has 32 divisors (see below), whose sum is σ = 101310490800. Its totient is φ = 24009192960.

The previous prime is 51025002103. The next prime is 51025002131. The reversal of 51025002104 is 40120052015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025002103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1990682 + ... + 2016150.

Almost surely, 2^51025002104 is an apocalyptic number.

It is an amenable number.

51025002104 is a deficient number, since it is larger than the sum of its proper divisors (50285488696).

51025002104 is a wasteful number, since it uses less digits than its factorization.

51025002104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40223 (or 40219 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 51025002104 its reverse (40120052015), we get a palindrome (91145054119).

The spelling of 51025002104 in words is "fifty-one billion, twenty-five million, two thousand, one hundred four".