51075805099 has 8 divisors (see below), whose sum is σ = 56482335792. Its totient is φ = 45796487040.

The previous prime is 51075805087. The next prime is 51075805129. The reversal of 51075805099 is 99050857015.

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 51075805099 - 2²⁵ = 51042250667 is a prime.

It is a super-2 number, since 2×51075805099² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51075805069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31802314 + ... + 31803919.

It is an arithmetic number, because the mean of its divisors is an integer number (7060291974).

Almost surely, 2^51075805099 is an apocalyptic number.

51075805099 is a deficient number, since it is larger than the sum of its proper divisors (5406530693).

51075805099 is a wasteful number, since it uses less digits than its factorization.

51075805099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63606317.

The product of its (nonzero) digits is 567000, while the sum is 49.

The spelling of 51075805099 in words is "fifty-one billion, seventy-five million, eight hundred five thousand, ninety-nine".