51688015052 has 24 divisors (see below), whose sum is σ = 91745337600. Its totient is φ = 25475199120.

The previous prime is 51688015039. The next prime is 51688015061. The reversal of 51688015052 is 25051088615.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1845449 + ... + 1873247.

It is an arithmetic number, because the mean of its divisors is an integer number (3822722400).

Almost surely, 2^51688015052 is an apocalyptic number.

It is an amenable number.

51688015052 is a deficient number, since it is larger than the sum of its proper divisors (40057322548).

51688015052 is a wasteful number, since it uses less digits than its factorization.

51688015052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34421 (or 34419 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 41.

The spelling of 51688015052 in words is "fifty-one billion, six hundred eighty-eight million, fifteen thousand, fifty-two".