51005516006 has 8 divisors (see below), whose sum is σ = 78976282944. Its totient is φ = 24680088360.

The previous prime is 51005515969. The next prime is 51005516047. The reversal of 51005516006 is 60061550015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51005516006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411334745 + ... + 411334868.

It is an arithmetic number, because the mean of its divisors is an integer number (9872035368).

Almost surely, 2^51005516006 is an apocalyptic number.

51005516006 is a deficient number, since it is larger than the sum of its proper divisors (27970766938).

51005516006 is a wasteful number, since it uses less digits than its factorization.

51005516006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822669646.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 51005516006 in words is "fifty-one billion, five million, five hundred sixteen thousand, six".