51443425001 has 2 divisors, whose sum is σ = 51443425002. Its totient is φ = 51443425000.

The previous prime is 51443424997. The next prime is 51443425051. The reversal of 51443425001 is 10052434415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48038118976 + 3405306025 = 219176^2 + 58355^2 .

It is a cyclic number.

It is not a de Polignac number, because 51443425001 - 2² = 51443424997 is a prime.

It is not a weakly prime, because it can be changed into another prime (51443425051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25721712500 + 25721712501.

It is an arithmetic number, because the mean of its divisors is an integer number (25721712501).

Almost surely, 2^51443425001 is an apocalyptic number.

It is an amenable number.

51443425001 is a deficient number, since it is larger than the sum of its proper divisors (1).

51443425001 is an equidigital number, since it uses as much as digits as its factorization.

51443425001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 51443425001 its reverse (10052434415), we get a palindrome (61495859416).

The spelling of 51443425001 in words is "fifty-one billion, four hundred forty-three million, four hundred twenty-five thousand, one".