51061011005 has 8 divisors (see below), whose sum is σ = 61581120000. Its totient is φ = 40643537616.

The previous prime is 51061010929. The next prime is 51061011007. The reversal of 51061011005 is 50011016015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51061011005 - 2²⁴ = 51044233789 is a prime.

It is a super-2 number, since 2×51061011005² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51061011007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25657805 + ... + 25659794.

It is an arithmetic number, because the mean of its divisors is an integer number (7697640000).

Almost surely, 2^51061011005 is an apocalyptic number.

It is an amenable number.

51061011005 is a deficient number, since it is larger than the sum of its proper divisors (10520108995).

51061011005 is a wasteful number, since it uses less digits than its factorization.

51061011005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51317803.

The product of its (nonzero) digits is 150, while the sum is 20.

The spelling of 51061011005 in words is "fifty-one billion, sixty-one million, eleven thousand, five".