51408179 has 2 divisors, whose sum is σ = 51408180. Its totient is φ = 51408178.

The previous prime is 51408169. The next prime is 51408193. The reversal of 51408179 is 97180415.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51408179 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (51408139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25704089 + 25704090.

It is an arithmetic number, because the mean of its divisors is an integer number (25704090).

Almost surely, 2^51408179 is an apocalyptic number.

51408179 is a deficient number, since it is larger than the sum of its proper divisors (1).

51408179 is an equidigital number, since it uses as much as digits as its factorization.

51408179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 51408179 is about 7169.9497208837. The cubic root of 51408179 is about 371.8296976474.

The spelling of 51408179 in words is "fifty-one million, four hundred eight thousand, one hundred seventy-nine".