51056050585 has 4 divisors (see below), whose sum is σ = 61267260708. Its totient is φ = 40844840464.

The previous prime is 51056050579. The next prime is 51056050613. The reversal of 51056050585 is 58505065015.

It is a happy number.

51056050585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15167400336 + 35888650249 = 123156^2 + 189443^2 .

It is a cyclic number.

It is not a de Polignac number, because 51056050585 - 2⁵ = 51056050553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105605054 + ... + 5105605063.

It is an arithmetic number, because the mean of its divisors is an integer number (15316815177).

Almost surely, 2^51056050585 is an apocalyptic number.

It is an amenable number.

51056050585 is a deficient number, since it is larger than the sum of its proper divisors (10211210123).

51056050585 is a wasteful number, since it uses less digits than its factorization.

51056050585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10211210122.

The product of its (nonzero) digits is 150000, while the sum is 40.

The spelling of 51056050585 in words is "fifty-one billion, fifty-six million, fifty thousand, five hundred eighty-five".