51056050556113 has 4 divisors (see below), whose sum is σ = 51056067146148. Its totient is φ = 51056033966080.

The previous prime is 51056050556111. The next prime is 51056050556123. The reversal of 51056050556113 is 31165505065015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47619149839569 + 3436900716544 = 6900663^2 + 1853888^2 .

It is a cyclic number.

It is not a de Polignac number, because 51056050556113 - 2¹ = 51056050556111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51056050556113.

It is not an unprimeable number, because it can be changed into a prime (51056050556111) 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, 2172328 + ... + 10335913.

It is an arithmetic number, because the mean of its divisors is an integer number (12764016786537).

Almost surely, 2^{51056050556113} is an apocalyptic number.

It is an amenable number.

51056050556113 is a deficient number, since it is larger than the sum of its proper divisors (16590035).

51056050556113 is a wasteful number, since it uses less digits than its factorization.

51056050556113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16590034.

The product of its (nonzero) digits is 337500, while the sum is 43.

The spelling of 51056050556113 in words is "fifty-one trillion, fifty-six billion, fifty million, five hundred fifty-six thousand, one hundred thirteen".