51324121 has 2 divisors, whose sum is σ = 51324122. Its totient is φ = 51324120.

The previous prime is 51324107. The next prime is 51324151. The reversal of 51324121 is 12142315.

51324121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51322896 + 1225 = 7164^2 + 35^2 .

It is a cyclic number.

It is not a de Polignac number, because 51324121 - 2¹⁵ = 51291353 is a prime.

It is not a weakly prime, because it can be changed into another prime (51324101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25662060 + 25662061.

It is an arithmetic number, because the mean of its divisors is an integer number (25662061).

Almost surely, 2^51324121 is an apocalyptic number.

It is an amenable number.

51324121 is a deficient number, since it is larger than the sum of its proper divisors (1).

51324121 is an equidigital number, since it uses as much as digits as its factorization.

51324121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 51324121 is about 7164.0854964189. The cubic root of 51324121 is about 371.6269263369.

Adding to 51324121 its reverse (12142315), we get a palindrome (63466436).

The spelling of 51324121 in words is "fifty-one million, three hundred twenty-four thousand, one hundred twenty-one".