51205224032 has 24 divisors (see below), whose sum is σ = 100818398016. Its totient is φ = 25600551552.

The previous prime is 51205224019. The next prime is 51205224043. The reversal of 51205224032 is 23042250215.

It is a junction number, because it is equal to n+sod(n) for n = 51205223992 and 51205224010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388433 + ... + 503279.

It is an arithmetic number, because the mean of its divisors is an integer number (4200766584).

Almost surely, 2^51205224032 is an apocalyptic number.

It is an amenable number.

51205224032 is a deficient number, since it is larger than the sum of its proper divisors (49613173984).

51205224032 is a wasteful number, since it uses less digits than its factorization.

51205224032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128790 (or 128782 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 51205224032 its reverse (23042250215), we get a palindrome (74247474247).

The spelling of 51205224032 in words is "fifty-one billion, two hundred five million, two hundred twenty-four thousand, thirty-two".