51043816059 has 4 divisors (see below), whose sum is σ = 68058421416. Its totient is φ = 34029210704.

The previous prime is 51043816037. The next prime is 51043816069. The reversal of 51043816059 is 95061834015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51043816059 - 2⁷ = 51043815931 is a prime.

It is a super-4 number, since 4×51043816059⁴ (a number of 44 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51043816059.

It is not an unprimeable number, because it can be changed into a prime (51043816069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8507302674 + ... + 8507302679.

It is an arithmetic number, because the mean of its divisors is an integer number (17014605354).

Almost surely, 2^51043816059 is an apocalyptic number.

51043816059 is a deficient number, since it is larger than the sum of its proper divisors (17014605357).

51043816059 is a wasteful number, since it uses less digits than its factorization.

51043816059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17014605356.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 51043816059 in words is "fifty-one billion, forty-three million, eight hundred sixteen thousand, fifty-nine".