51855535358 has 16 divisors (see below), whose sum is σ = 84858284016. Its totient is φ = 23569650240.

The previous prime is 51855535351. The next prime is 51855535427. The reversal of 51855535358 is 85353555815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51855535351) 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 7 ways as a sum of consecutive naturals, for example, 683660 + ... + 755712.

It is an arithmetic number, because the mean of its divisors is an integer number (5303642751).

Almost surely, 2^51855535358 is an apocalyptic number.

51855535358 is a deficient number, since it is larger than the sum of its proper divisors (33002748658).

51855535358 is a wasteful number, since it uses less digits than its factorization.

51855535358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104779.

The product of its digits is 9000000, while the sum is 53.

The spelling of 51855535358 in words is "fifty-one billion, eight hundred fifty-five million, five hundred thirty-five thousand, three hundred fifty-eight".