51293333617 has 8 divisors (see below), whose sum is σ = 51383102760. Its totient is φ = 51203602560.

The previous prime is 51293333587. The next prime is 51293333621. The reversal of 51293333617 is 71633339215.

It can be written as a sum of positive squares in 4 ways, for example, as 22656571441 + 28636762176 = 150521^2 + 169224^2 .

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-51293333617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51293330617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4336203 + ... + 4348015.

It is an arithmetic number, because the mean of its divisors is an integer number (6422887845).

Almost surely, 2^51293333617 is an apocalyptic number.

It is an amenable number.

51293333617 is a deficient number, since it is larger than the sum of its proper divisors (89769143).

51293333617 is a wasteful number, since it uses less digits than its factorization.

51293333617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19043.

The product of its digits is 306180, while the sum is 43.

The spelling of 51293333617 in words is "fifty-one billion, two hundred ninety-three million, three hundred thirty-three thousand, six hundred seventeen".