51246329 has 2 divisors, whose sum is σ = 51246330. Its totient is φ = 51246328.

The previous prime is 51246319. The next prime is 51246337. The reversal of 51246329 is 92364215.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30525625 + 20720704 = 5525^2 + 4552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51246329 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51246295 and 51246304.

It is not a weakly prime, because it can be changed into another prime (51246319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25623164 + 25623165.

It is an arithmetic number, because the mean of its divisors is an integer number (25623165).

Almost surely, 2^51246329 is an apocalyptic number.

It is an amenable number.

51246329 is a deficient number, since it is larger than the sum of its proper divisors (1).

51246329 is an equidigital number, since it uses as much as digits as its factorization.

51246329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 51246329 is about 7158.6541332851. The cubic root of 51246329 is about 371.4390730125.

The spelling of 51246329 in words is "fifty-one million, two hundred forty-six thousand, three hundred twenty-nine".