51086518480252 has 12 divisors (see below), whose sum is σ = 89614775857320. Its totient is φ = 25482296806736.

The previous prime is 51086518480211. The next prime is 51086518480253. The reversal of 51086518480252 is 25208481568015.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51086518480193 and 51086518480202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51086518480253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15240606463 + ... + 15240609814.

It is an arithmetic number, because the mean of its divisors is an integer number (7467897988110).

Almost surely, 2^{51086518480252} is an apocalyptic number.

It is an amenable number.

51086518480252 is a deficient number, since it is larger than the sum of its proper divisors (38528257377068).

51086518480252 is a wasteful number, since it uses less digits than its factorization.

51086518480252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30481216700 (or 30481216698 counting only the distinct ones).

The product of its (nonzero) digits is 6144000, while the sum is 55.

The spelling of 51086518480252 in words is "fifty-one trillion, eighty-six billion, five hundred eighteen million, four hundred eighty thousand, two hundred fifty-two".