51430550005 has 8 divisors (see below), whose sum is σ = 63384678072. Its totient is φ = 40032427968.

The previous prime is 51430549999. The next prime is 51430550009. The reversal of 51430550005 is 50005503415.

It can be written as a sum of positive squares in 4 ways, for example, as 21337321329 + 30093228676 = 146073^2 + 173474^2 .

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-51430550005 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 (51430550009) 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, 139001302 + ... + 139001671.

It is an arithmetic number, because the mean of its divisors is an integer number (7923084759).

Almost surely, 2^51430550005 is an apocalyptic number.

It is an amenable number.

51430550005 is a deficient number, since it is larger than the sum of its proper divisors (11954128067).

51430550005 is a wasteful number, since it uses less digits than its factorization.

51430550005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278003015.

The product of its (nonzero) digits is 7500, while the sum is 28.

The spelling of 51430550005 in words is "fifty-one billion, four hundred thirty million, five hundred fifty thousand, five".