51512152512 has 56 divisors (see below), whose sum is σ = 137642053392. Its totient is φ = 17000704000.

The previous prime is 51512152507. The next prime is 51512152519. The reversal of 51512152512 is 21525121515.

It is a self number, because there is not a number n which added to its sum of digits gives 51512152512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51512152519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1308789 + ... + 1347572.

Almost surely, 2^51512152512 is an apocalyptic number.

It is an amenable number.

51512152512 is an abundant number, since it is smaller than the sum of its proper divisors (86129900880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51512152512 is a wasteful number, since it uses less digits than its factorization.

51512152512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656477 (or 2656467 counting only the distinct ones).

The product of its digits is 5000, while the sum is 30.

The spelling of 51512152512 in words is "fifty-one billion, five hundred twelve million, one hundred fifty-two thousand, five hundred twelve".