51115302251111 has 8 divisors (see below), whose sum is σ = 58456773765120. Its totient is φ = 43783652106648.

The previous prime is 51115302251071. The next prime is 51115302251141. The reversal of 51115302251111 is 11115220351115.

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 51115302251111 - 2¹⁴ = 51115302234727 is a prime.

It is a super-2 number, since 2×51115302251111² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51115302251141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2455331231 + ... + 2455352048.

It is an arithmetic number, because the mean of its divisors is an integer number (7307096720640).

Almost surely, 2^{51115302251111} is an apocalyptic number.

51115302251111 is a deficient number, since it is larger than the sum of its proper divisors (7341471514009).

51115302251111 is a wasteful number, since it uses less digits than its factorization.

51115302251111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910684773.

The product of its (nonzero) digits is 1500, while the sum is 29.

The spelling of 51115302251111 in words is "fifty-one trillion, one hundred fifteen billion, three hundred two million, two hundred fifty-one thousand, one hundred eleven".