51550150064 has 40 divisors (see below), whose sum is σ = 114200705568. Its totient is φ = 22082480640.

The previous prime is 51550150051. The next prime is 51550150081. The reversal of 51550150064 is 46005105515.

It is a self number, because there is not a number n which added to its sum of digits gives 51550150064.

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, 131654 + ... + 347034.

Almost surely, 2^51550150064 is an apocalyptic number.

It is an amenable number.

51550150064 is an abundant number, since it is smaller than the sum of its proper divisors (62650555504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51550150064 is a wasteful number, since it uses less digits than its factorization.

51550150064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217533 (or 217527 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 51550150064 its reverse (46005105515), we get a palindrome (97555255579).

It can be divided in two parts, 515501 and 50064, that added together give a palindrome (565565).

The spelling of 51550150064 in words is "fifty-one billion, five hundred fifty million, one hundred fifty thousand, sixty-four".