51115012014 has 16 divisors (see below), whose sum is σ = 111523662720. Its totient is φ = 15489397560.

The previous prime is 51115012001. The next prime is 51115012061. The reversal of 51115012014 is 41021051115.

It is a super-2 number, since 2×51115012014² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387234874 + ... + 387235005.

It is an arithmetic number, because the mean of its divisors is an integer number (6970228920).

Almost surely, 2^51115012014 is an apocalyptic number.

51115012014 is an abundant number, since it is smaller than the sum of its proper divisors (60408650706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51115012014 is a wasteful number, since it uses less digits than its factorization.

51115012014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774469895.

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 51115012014 its reverse (41021051115), we get a palindrome (92136063129).

The spelling of 51115012014 in words is "fifty-one billion, one hundred fifteen million, twelve thousand, fourteen".