51500950808 has 16 divisors (see below), whose sum is σ = 96670294560. Its totient is φ = 25722205600.

The previous prime is 51500950807. The next prime is 51500950829. The reversal of 51500950808 is 80805900515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51500950801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3525983 + ... + 3540558.

It is an arithmetic number, because the mean of its divisors is an integer number (6041893410).

Almost surely, 2^51500950808 is an apocalyptic number.

It is an amenable number.

51500950808 is a deficient number, since it is larger than the sum of its proper divisors (45169343752).

51500950808 is a wasteful number, since it uses less digits than its factorization.

51500950808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7067458 (or 7067454 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 41.

The spelling of 51500950808 in words is "fifty-one billion, five hundred million, nine hundred fifty thousand, eight hundred eight".