51431300251324 has 72 divisors (see below), whose sum is σ = 109256196833280. Its totient is φ = 21082748014944.

The previous prime is 51431300251297. The next prime is 51431300251327. The reversal of 51431300251324 is 42315200313415.

It is a self number, because there is not a number n which added to its sum of digits gives 51431300251324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51431300251327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112322757 + ... + 112779715.

It is an arithmetic number, because the mean of its divisors is an integer number (1517447178240).

Almost surely, 2^{51431300251324} is an apocalyptic number.

It is an amenable number.

51431300251324 is an abundant number, since it is smaller than the sum of its proper divisors (57824896581956).

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

51431300251324 is a wasteful number, since it uses less digits than its factorization.

51431300251324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481967 (or 481958 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 51431300251324 its reverse (42315200313415), we get a palindrome (93746500564739).

The spelling of 51431300251324 in words is "fifty-one trillion, four hundred thirty-one billion, three hundred million, two hundred fifty-one thousand, three hundred twenty-four".