51105503255 has 8 divisors (see below), whose sum is σ = 61329578112. Its totient is φ = 40882419808.

The previous prime is 51105503231. The next prime is 51105503261. The reversal of 51105503255 is 55230550115.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51105503255 is a prime.

It is a super-2 number, since 2×51105503255² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129287 + ... + 344856.

It is an arithmetic number, because the mean of its divisors is an integer number (7666197264).

Almost surely, 2^51105503255 is an apocalyptic number.

51105503255 is a deficient number, since it is larger than the sum of its proper divisors (10224074857).

51105503255 is a wasteful number, since it uses less digits than its factorization.

51105503255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495705.

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 51105503255 in words is "fifty-one billion, one hundred five million, five hundred three thousand, two hundred fifty-five".