51040473220 has 48 divisors (see below), whose sum is σ = 118086849216. Its totient is φ = 18376400000.

The previous prime is 51040473203. The next prime is 51040473233. The reversal of 51040473220 is 2237404015.

51040473220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1126306 + ... + 1170745.

It is an arithmetic number, because the mean of its divisors is an integer number (2460142692).

Almost surely, 2^51040473220 is an apocalyptic number.

It is an amenable number.

51040473220 is an abundant number, since it is smaller than the sum of its proper divisors (67046375996).

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

51040473220 is a wasteful number, since it uses less digits than its factorization.

51040473220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297172 (or 2297170 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

Adding to 51040473220 its reverse (2237404015), we get a palindrome (53277877235).

The spelling of 51040473220 in words is "fifty-one billion, forty million, four hundred seventy-three thousand, two hundred twenty".