51499163 has 2 divisors, whose sum is σ = 51499164. Its totient is φ = 51499162.

The previous prime is 51499127. The next prime is 51499181. The reversal of 51499163 is 36199415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51499163 - 2¹⁴ = 51482779 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (51499183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25749581 + 25749582.

It is an arithmetic number, because the mean of its divisors is an integer number (25749582).

Almost surely, 2^51499163 is an apocalyptic number.

51499163 is a deficient number, since it is larger than the sum of its proper divisors (1).

51499163 is an equidigital number, since it uses as much as digits as its factorization.

51499163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 38.

The square root of 51499163 is about 7176.2917304134. The cubic root of 51499163 is about 372.0489274490.

The spelling of 51499163 in words is "fifty-one million, four hundred ninety-nine thousand, one hundred sixty-three".