51630033055 has 4 divisors (see below), whose sum is σ = 61956039672. Its totient is φ = 41304026440.

The previous prime is 51630033041. The next prime is 51630033067. The reversal of 51630033055 is 55033003615.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55033003615 = 5 ⋅11006600723.

It is not a de Polignac number, because 51630033055 - 2¹⁵ = 51630000287 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5163003301 + ... + 5163003310.

It is an arithmetic number, because the mean of its divisors is an integer number (15489009918).

Almost surely, 2^51630033055 is an apocalyptic number.

51630033055 is a deficient number, since it is larger than the sum of its proper divisors (10326006617).

51630033055 is a wasteful number, since it uses less digits than its factorization.

51630033055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10326006616.

The product of its (nonzero) digits is 20250, while the sum is 31.

The spelling of 51630033055 in words is "fifty-one billion, six hundred thirty million, thirty-three thousand, fifty-five".