51062321 has 2 divisors, whose sum is σ = 51062322. Its totient is φ = 51062320.

The previous prime is 51062309. The next prime is 51062383. The reversal of 51062321 is 12326015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37957921 + 13104400 = 6161^2 + 3620^2 .

It is a cyclic number.

It is not a de Polignac number, because 51062321 - 2¹⁸ = 50800177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51062293 and 51062302.

It is not a weakly prime, because it can be changed into another prime (51062021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25531160 + 25531161.

It is an arithmetic number, because the mean of its divisors is an integer number (25531161).

Almost surely, 2^51062321 is an apocalyptic number.

It is an amenable number.

51062321 is a deficient number, since it is larger than the sum of its proper divisors (1).

51062321 is an equidigital number, since it uses as much as digits as its factorization.

51062321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 51062321 is about 7145.7904391327. The cubic root of 51062321 is about 370.9939697220.

Adding to 51062321 its reverse (12326015), we get a palindrome (63388336).

The spelling of 51062321 in words is "fifty-one million, sixty-two thousand, three hundred twenty-one".