51355553311 has 8 divisors (see below), whose sum is σ = 52611759648. Its totient is φ = 50099520000.

The previous prime is 51355553297. The next prime is 51355553323. The reversal of 51355553311 is 11335555315.

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

It is a cyclic number.

It is not a de Polignac number, because 51355553311 - 2¹⁹ = 51355029023 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 (51355523311) 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, 720406 + ... + 788476.

It is an arithmetic number, because the mean of its divisors is an integer number (6576469956).

Almost surely, 2^51355553311 is an apocalyptic number.

51355553311 is a deficient number, since it is larger than the sum of its proper divisors (1256206337).

51355553311 is a wasteful number, since it uses less digits than its factorization.

51355553311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86513.

The product of its digits is 84375, while the sum is 37.

The spelling of 51355553311 in words is "fifty-one billion, three hundred fifty-five million, five hundred fifty-three thousand, three hundred eleven".