51050006005 has 4 divisors (see below), whose sum is σ = 61260007212. Its totient is φ = 40840004800.

The previous prime is 51050005949. The next prime is 51050006071. The reversal of 51050006005 is 50060005015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50060005015 = 5 ⋅10012001003.

It can be written as a sum of positive squares in 2 ways, for example, as 8289556209 + 42760449796 = 91047^2 + 206786^2 .

It is not a de Polignac number, because 51050006005 - 2¹⁵ = 51049973237 is a prime.

It is a super-2 number, since 2×51050006005² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 5105000596 + ... + 5105000605.

It is an arithmetic number, because the mean of its divisors is an integer number (15315001803).

Almost surely, 2^51050006005 is an apocalyptic number.

It is an amenable number.

51050006005 is a deficient number, since it is larger than the sum of its proper divisors (10210001207).

51050006005 is a wasteful number, since it uses less digits than its factorization.

51050006005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10210001206.

The product of its (nonzero) digits is 750, while the sum is 22.

The spelling of 51050006005 in words is "fifty-one billion, fifty million, six thousand, five".