51768029 has 2 divisors, whose sum is σ = 51768030. Its totient is φ = 51768028.

The previous prime is 51768011. The next prime is 51768061. The reversal of 51768029 is 92086715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51768025 + 4 = 7195^2 + 2^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51768029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51767983 and 51768001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51768089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25884014 + 25884015.

It is an arithmetic number, because the mean of its divisors is an integer number (25884015).

Almost surely, 2^51768029 is an apocalyptic number.

It is an amenable number.

51768029 is a deficient number, since it is larger than the sum of its proper divisors (1).

51768029 is an equidigital number, since it uses as much as digits as its factorization.

51768029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 51768029 is about 7195.0002779708. Note that the first 3 decimals coincide. The cubic root of 51768029 is about 372.6952662997.

The spelling of 51768029 in words is "fifty-one million, seven hundred sixty-eight thousand, twenty-nine".