51512512102 has 8 divisors (see below), whose sum is σ = 77270221800. Its totient is φ = 25755771504.

The previous prime is 51512512087. The next prime is 51512512127. The reversal of 51512512102 is 20121521515.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90327 + ... + 333442.

It is an arithmetic number, because the mean of its divisors is an integer number (9658777725).

Almost surely, 2^51512512102 is an apocalyptic number.

51512512102 is a deficient number, since it is larger than the sum of its proper divisors (25757709698).

51512512102 is a wasteful number, since it uses less digits than its factorization.

51512512102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484550.

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 51512512102 in words is "fifty-one billion, five hundred twelve million, five hundred twelve thousand, one hundred two".