51016787 has 2 divisors, whose sum is σ = 51016788. Its totient is φ = 51016786.

The previous prime is 51016781. The next prime is 51016831. The reversal of 51016787 is 78761015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51016787 - 2¹⁰ = 51015763 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51016781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25508393 + 25508394.

It is an arithmetic number, because the mean of its divisors is an integer number (25508394).

Almost surely, 2^51016787 is an apocalyptic number.

51016787 is a deficient number, since it is larger than the sum of its proper divisors (1).

51016787 is an equidigital number, since it uses as much as digits as its factorization.

51016787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 51016787 is about 7142.6036569307. The cubic root of 51016787 is about 370.8836609668.

The spelling of 51016787 in words is "fifty-one million, sixteen thousand, seven hundred eighty-seven".