51515515141 has 8 divisors (see below), whose sum is σ = 53179974144. Its totient is φ = 49851222960.

The previous prime is 51515515127. The next prime is 51515515147. The reversal of 51515515141 is 14151551515.

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 51515515141 - 2³³ = 42925580549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51515515097 and 51515515106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51515515147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996456 + ... + 1046878.

It is an arithmetic number, because the mean of its divisors is an integer number (6647496768).

Almost surely, 2^51515515141 is an apocalyptic number.

It is an amenable number.

51515515141 is a deficient number, since it is larger than the sum of its proper divisors (1664459003).

51515515141 is a wasteful number, since it uses less digits than its factorization.

51515515141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83411.

The product of its digits is 12500, while the sum is 34.

It can be divided in two parts, 5151551514 and 1, that added together give a palindrome (5151551515).

The spelling of 51515515141 in words is "fifty-one billion, five hundred fifteen million, five hundred fifteen thousand, one hundred forty-one".