51005650158 has 32 divisors (see below), whose sum is σ = 113414246400. Its totient is φ = 16991629848.

The previous prime is 51005650151. The next prime is 51005650159. The reversal of 51005650158 is 85105650015.

51005650158 is a `hidden beast` number, since 51 + 0 + 0 + 56 + 501 + 58 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51005650151) 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 15 ways as a sum of consecutive naturals, for example, 194188 + ... + 373791.

It is an arithmetic number, because the mean of its divisors is an integer number (3544195200).

Almost surely, 2^51005650158 is an apocalyptic number.

51005650158 is an abundant number, since it is smaller than the sum of its proper divisors (62408596242).

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

51005650158 is a wasteful number, since it uses less digits than its factorization.

51005650158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569653 (or 569647 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

The spelling of 51005650158 in words is "fifty-one billion, five million, six hundred fifty thousand, one hundred fifty-eight".