51500559106 has 16 divisors (see below), whose sum is σ = 77662941048. Its totient is φ = 25613164800.

The previous prime is 51500559031. The next prime is 51500559113. The reversal of 51500559106 is 60195500515.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22603619025 + 28896940081 = 150345^2 + 169991^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 348516 + ... + 473776.

Almost surely, 2^51500559106 is an apocalyptic number.

51500559106 is a deficient number, since it is larger than the sum of its proper divisors (26162381942).

51500559106 is a wasteful number, since it uses less digits than its factorization.

51500559106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126357.

The product of its (nonzero) digits is 33750, while the sum is 37.

The spelling of 51500559106 in words is "fifty-one billion, five hundred million, five hundred fifty-nine thousand, one hundred six".