51780332 has 12 divisors (see below), whose sum is σ = 90706560. Its totient is φ = 25864176.

The previous prime is 51780271. The next prime is 51780343. The reversal of 51780332 is 23308715.

51780332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51780295 and 51780304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1607 + ... + 10302.

It is an arithmetic number, because the mean of its divisors is an integer number (7558880).

Almost surely, 2^51780332 is an apocalyptic number.

It is an amenable number.

51780332 is a deficient number, since it is larger than the sum of its proper divisors (38926228).

51780332 is a wasteful number, since it uses less digits than its factorization.

51780332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13000 (or 12998 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 51780332 is about 7195.8551958749. The cubic root of 51780332 is about 372.7247884247.

The spelling of 51780332 in words is "fifty-one million, seven hundred eighty thousand, three hundred thirty-two".