51751351555 has 16 divisors (see below), whose sum is σ = 65461132800. Its totient is φ = 39167474400.

The previous prime is 51751351481. The next prime is 51751351573. The reversal of 51751351555 is 55515315715.

It is not a de Polignac number, because 51751351555 - 2¹⁹ = 51750827267 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310521 + ... + 447130.

It is an arithmetic number, because the mean of its divisors is an integer number (4091320800).

Almost surely, 2^51751351555 is an apocalyptic number.

51751351555 is a deficient number, since it is larger than the sum of its proper divisors (13709781245).

51751351555 is a wasteful number, since it uses less digits than its factorization.

51751351555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758394.

The product of its digits is 328125, while the sum is 43.

The spelling of 51751351555 in words is "fifty-one billion, seven hundred fifty-one million, three hundred fifty-one thousand, five hundred fifty-five".