51508307630 has 32 divisors (see below), whose sum is σ = 99938168064. Its totient is φ = 19001062656.

The previous prime is 51508307597. The next prime is 51508307647. The reversal of 51508307630 is 3670380515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37982 + ... + 323201.

It is an arithmetic number, because the mean of its divisors is an integer number (3123067752).

Almost surely, 2^51508307630 is an apocalyptic number.

51508307630 is a deficient number, since it is larger than the sum of its proper divisors (48429860434).

51508307630 is a wasteful number, since it uses less digits than its factorization.

51508307630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362300.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 51508307630 in words is "fifty-one billion, five hundred eight million, three hundred seven thousand, six hundred thirty".