51055051017 has 4 divisors (see below), whose sum is σ = 68073401360. Its totient is φ = 34036700676.

The previous prime is 51055050979. The next prime is 51055051063. The reversal of 51055051017 is 71015055015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51055051017 - 2⁶ = 51055050953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51055051717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8509175167 + ... + 8509175172.

It is an arithmetic number, because the mean of its divisors is an integer number (17018350340).

Almost surely, 2^51055051017 is an apocalyptic number.

It is an amenable number.

51055051017 is a deficient number, since it is larger than the sum of its proper divisors (17018350343).

51055051017 is a wasteful number, since it uses less digits than its factorization.

51055051017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17018350342.

The product of its (nonzero) digits is 4375, while the sum is 30.

The spelling of 51055051017 in words is "fifty-one billion, fifty-five million, fifty-one thousand, seventeen".