51443425012 has 24 divisors (see below), whose sum is σ = 102894800960. Its totient is φ = 22045478400.

The previous prime is 51443425001. The next prime is 51443425051. The reversal of 51443425012 is 21052434415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339439 + ... + 467017.

Almost surely, 2^51443425012 is an apocalyptic number.

It is an amenable number.

51443425012 is an abundant number, since it is smaller than the sum of its proper divisors (51451375948).

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

51443425012 is a wasteful number, since it uses less digits than its factorization.

51443425012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141991 (or 141989 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 51443425012 its reverse (21052434415), we get a palindrome (72495859427).

The spelling of 51443425012 in words is "fifty-one billion, four hundred forty-three million, four hundred twenty-five thousand, twelve".