51820060 has 24 divisors (see below), whose sum is σ = 110357856. Its totient is φ = 20435520.

The previous prime is 51820057. The next prime is 51820079. The reversal of 51820060 is 6002815.

It is a happy number.

51820060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 16827 + ... + 19666.

It is an arithmetic number, because the mean of its divisors is an integer number (4598244).

Almost surely, 2^51820060 is an apocalyptic number.

It is an amenable number.

51820060 is an abundant number, since it is smaller than the sum of its proper divisors (58537796).

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

51820060 is a wasteful number, since it uses less digits than its factorization.

51820060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36573 (or 36571 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 51820060 is about 7198.6151445955. The cubic root of 51820060 is about 372.8200873180.

Adding to 51820060 its reverse (6002815), we get a palindrome (57822875).

The spelling of 51820060 in words is "fifty-one million, eight hundred twenty thousand, sixty".