51350591855 has 8 divisors (see below), whose sum is σ = 63608475264. Its totient is φ = 39755296800.

The previous prime is 51350591843. The next prime is 51350591857. The reversal of 51350591855 is 55819505315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51350591855 - 2⁴ = 51350591839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51350591857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165646916 + ... + 165647225.

It is an arithmetic number, because the mean of its divisors is an integer number (7951059408).

Almost surely, 2^51350591855 is an apocalyptic number.

51350591855 is a deficient number, since it is larger than the sum of its proper divisors (12257883409).

51350591855 is a wasteful number, since it uses less digits than its factorization.

51350591855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331294177.

The product of its (nonzero) digits is 675000, while the sum is 47.

The spelling of 51350591855 in words is "fifty-one billion, three hundred fifty million, five hundred ninety-one thousand, eight hundred fifty-five".