51065767 has 2 divisors, whose sum is σ = 51065768. Its totient is φ = 51065766.

The previous prime is 51065759. The next prime is 51065779. The reversal of 51065767 is 76756015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51065767 - 2³ = 51065759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51045767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25532883 + 25532884.

It is an arithmetic number, because the mean of its divisors is an integer number (25532884).

Almost surely, 2^51065767 is an apocalyptic number.

51065767 is a deficient number, since it is larger than the sum of its proper divisors (1).

51065767 is an equidigital number, since it uses as much as digits as its factorization.

51065767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 51065767 is about 7146.0315560456. The cubic root of 51065767 is about 371.0023151872.

The spelling of 51065767 in words is "fifty-one million, sixty-five thousand, seven hundred sixty-seven".