51052948977617 has 8 divisors (see below), whose sum is σ = 51897994560552. Its totient is φ = 50208165072000.

The previous prime is 51052948977587. The next prime is 51052948977619. The reversal of 51052948977617 is 71677984925015.

It can be written as a sum of positive squares in 4 ways, for example, as 323170647361 + 50729778330256 = 568481^2 + 7122484^2 .

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 51052948977617 - 2³⁶ = 50984229500881 is a prime.

It is a super-2 number, since 2×51052948977617² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51052948977619) 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, 65025884 + ... + 65806317.

It is an arithmetic number, because the mean of its divisors is an integer number (6487249320069).

Almost surely, 2^{51052948977617} is an apocalyptic number.

It is an amenable number.

51052948977617 is a deficient number, since it is larger than the sum of its proper divisors (845045582935).

51052948977617 is a wasteful number, since it uses less digits than its factorization.

51052948977617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130838659.

The product of its (nonzero) digits is 266716800, while the sum is 71.

The spelling of 51052948977617 in words is "fifty-one trillion, fifty-two billion, nine hundred forty-eight million, nine hundred seventy-seven thousand, six hundred seventeen".