51292993256 has 32 divisors (see below), whose sum is σ = 103705358400. Its totient is φ = 23704076160.

The previous prime is 51292993177. The next prime is 51292993259. The reversal of 51292993256 is 65239929215.

It is a super-2 number, since 2×51292993256² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51292993198 and 51292993207.

It is not an unprimeable number, because it can be changed into a prime (51292993259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4109060 + ... + 4121523.

It is an arithmetic number, because the mean of its divisors is an integer number (3240792450).

Almost surely, 2^51292993256 is an apocalyptic number.

It is an amenable number.

51292993256 is an abundant number, since it is smaller than the sum of its proper divisors (52412365144).

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

51292993256 is a wasteful number, since it uses less digits than its factorization.

51292993256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8230649 (or 8230645 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 53.

The spelling of 51292993256 in words is "fifty-one billion, two hundred ninety-two million, nine hundred ninety-three thousand, two hundred fifty-six".