51055144145 has 8 divisors (see below), whose sum is σ = 61954557480. Its totient is φ = 40385192320.

The previous prime is 51055144139. The next prime is 51055144163. The reversal of 51055144145 is 54144155015.

It can be written as a sum of positive squares in 4 ways, for example, as 12484933696 + 38570210449 = 111736^2 + 196393^2 .

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

It is not a de Polignac number, because 51055144145 - 2³² = 46760176849 is a prime.

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, 57364886 + ... + 57365775.

It is an arithmetic number, because the mean of its divisors is an integer number (7744319685).

Almost surely, 2^51055144145 is an apocalyptic number.

It is an amenable number.

51055144145 is a deficient number, since it is larger than the sum of its proper divisors (10899413335).

51055144145 is a wasteful number, since it uses less digits than its factorization.

51055144145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114730755.

The product of its (nonzero) digits is 40000, while the sum is 35.

The spelling of 51055144145 in words is "fifty-one billion, fifty-five million, one hundred forty-four thousand, one hundred forty-five".