51178327 has 2 divisors, whose sum is σ = 51178328. Its totient is φ = 51178326.

The previous prime is 51178321. The next prime is 51178339. The reversal of 51178327 is 72387115.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51178327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51178292 and 51178301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51178321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25589163 + 25589164.

It is an arithmetic number, because the mean of its divisors is an integer number (25589164).

Almost surely, 2^51178327 is an apocalyptic number.

51178327 is a deficient number, since it is larger than the sum of its proper divisors (1).

51178327 is an equidigital number, since it uses as much as digits as its factorization.

51178327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 34.

The square root of 51178327 is about 7153.9029207839. The cubic root of 51178327 is about 371.2747049430.

The spelling of 51178327 in words is "fifty-one million, one hundred seventy-eight thousand, three hundred twenty-seven".