51650505005 has 64 divisors (see below), whose sum is σ = 70892236800. Its totient is φ = 35791768320.

The previous prime is 51650504993. The next prime is 51650505037. The reversal of 51650505005 is 50050505615.

It is not a de Polignac number, because 51650505005 - 2⁸ = 51650504749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46573391 + ... + 46574499.

It is an arithmetic number, because the mean of its divisors is an integer number (1107691200).

Almost surely, 2^51650505005 is an apocalyptic number.

51650505005 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51650505005 is a deficient number, since it is larger than the sum of its proper divisors (19241731795).

51650505005 is a wasteful number, since it uses less digits than its factorization.

51650505005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634.

The product of its (nonzero) digits is 18750, while the sum is 32.

It can be divided in two parts, 51650 and 505005, that added together give a palindrome (556655).

The spelling of 51650505005 in words is "fifty-one billion, six hundred fifty million, five hundred five thousand, five".