51000125212 has 6 divisors (see below), whose sum is σ = 89250219128. Its totient is φ = 25500062604.

The previous prime is 51000125201. The next prime is 51000125221. The reversal of 51000125212 is 21252100015.

It is a self number, because there is not a number n which added to its sum of digits gives 51000125212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6375015648 + ... + 6375015655.

Almost surely, 2^51000125212 is an apocalyptic number.

It is an amenable number.

51000125212 is a deficient number, since it is larger than the sum of its proper divisors (38250093916).

51000125212 is a wasteful number, since it uses less digits than its factorization.

51000125212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12750031307 (or 12750031305 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 51000125212 its reverse (21252100015), we get a palindrome (72252225227).

The spelling of 51000125212 in words is "fifty-one billion, one hundred twenty-five thousand, two hundred twelve".