51368087 has 2 divisors, whose sum is σ = 51368088. Its totient is φ = 51368086.

The previous prime is 51368081. The next prime is 51368111. The reversal of 51368087 is 78086315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51368087 - 2⁸ = 51367831 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51368087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51368081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25684043 + 25684044.

It is an arithmetic number, because the mean of its divisors is an integer number (25684044).

Almost surely, 2^51368087 is an apocalyptic number.

51368087 is a deficient number, since it is larger than the sum of its proper divisors (1).

51368087 is an equidigital number, since it uses as much as digits as its factorization.

51368087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 51368087 is about 7167.1533400647. The cubic root of 51368087 is about 371.7330121685.

The spelling of 51368087 in words is "fifty-one million, three hundred sixty-eight thousand, eighty-seven".