51223507296 has 192 divisors, whose sum is σ = 153553434048. Its totient is φ = 14811660288.

The previous prime is 51223507289. The next prime is 51223507297. The reversal of 51223507296 is 69270532215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51223507297) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 18605056 + ... + 18607808.

It is an arithmetic number, because the mean of its divisors is an integer number (799757469).

Almost surely, 2^51223507296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51223507296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76776717024).

51223507296 is an abundant number, since it is smaller than the sum of its proper divisors (102329926752).

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

51223507296 is a wasteful number, since it uses less digits than its factorization.

51223507296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673 (or 3665 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 51223507296 in words is "fifty-one billion, two hundred twenty-three million, five hundred seven thousand, two hundred ninety-six".