51514321 has 2 divisors, whose sum is σ = 51514322. Its totient is φ = 51514320.

The previous prime is 51514313. The next prime is 51514361. The reversal of 51514321 is 12341515.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31809600 + 19704721 = 5640^2 + 4439^2 .

It is a cyclic number.

It is not a de Polignac number, because 51514321 - 2³ = 51514313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51514292 and 51514301.

It is not a weakly prime, because it can be changed into another prime (51514361) 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, 25757160 + 25757161.

It is an arithmetic number, because the mean of its divisors is an integer number (25757161).

Almost surely, 2^51514321 is an apocalyptic number.

It is an amenable number.

51514321 is a deficient number, since it is larger than the sum of its proper divisors (1).

51514321 is an equidigital number, since it uses as much as digits as its factorization.

51514321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 22.

The square root of 51514321 is about 7177.3477691972. The cubic root of 51514321 is about 372.0854261938.

Adding to 51514321 its reverse (12341515), we get a palindrome (63855836).

The spelling of 51514321 in words is "fifty-one million, five hundred fourteen thousand, three hundred twenty-one".