51320335055 has 32 divisors (see below), whose sum is σ = 67956356160. Its totient is φ = 36896670720.

The previous prime is 51320335051. The next prime is 51320335057. The reversal of 51320335055 is 55053302315.

It is not a de Polignac number, because 51320335055 - 2² = 51320335051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51320335051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1686011 + ... + 1716179.

It is an arithmetic number, because the mean of its divisors is an integer number (2123636130).

Almost surely, 2^51320335055 is an apocalyptic number.

51320335055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51320335055 is a deficient number, since it is larger than the sum of its proper divisors (16636021105).

51320335055 is a wasteful number, since it uses less digits than its factorization.

51320335055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30539.

The product of its (nonzero) digits is 33750, while the sum is 32.

The spelling of 51320335055 in words is "fifty-one billion, three hundred twenty million, three hundred thirty-five thousand, fifty-five".