51768061 has 2 divisors, whose sum is σ = 51768062. Its totient is φ = 51768060.

The previous prime is 51768029. The next prime is 51768083. The reversal of 51768061 is 16086715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51768025 + 36 = 7195^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 51768061 - 2⁵ = 51768029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51768011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25884030 + 25884031.

It is an arithmetic number, because the mean of its divisors is an integer number (25884031).

Almost surely, 2^51768061 is an apocalyptic number.

It is an amenable number.

51768061 is a deficient number, since it is larger than the sum of its proper divisors (1).

51768061 is an equidigital number, since it uses as much as digits as its factorization.

51768061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 51768061 is about 7195.0025017369. The cubic root of 51768061 is about 372.6953430925.

The spelling of 51768061 in words is "fifty-one million, seven hundred sixty-eight thousand, sixty-one".