50665919 has 2 divisors, whose sum is σ = 50665920. Its totient is φ = 50665918.

The previous prime is 50665907. The next prime is 50665931. The reversal of 50665919 is 91956605.

It is a balanced prime because it is at equal distance from previous prime (50665907) and next prime (50665931).

It is a cyclic number.

It is not a de Polignac number, because 50665919 - 2⁴ = 50665903 is a prime.

It is a super-2 number, since 2×50665919² = 5134070696229122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50665969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25332959 + 25332960.

It is an arithmetic number, because the mean of its divisors is an integer number (25332960).

Almost surely, 2^50665919 is an apocalyptic number.

50665919 is a deficient number, since it is larger than the sum of its proper divisors (1).

50665919 is an equidigital number, since it uses as much as digits as its factorization.

50665919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 50665919 is about 7117.9996487777. Note that the first 3 decimals coincide. The cubic root of 50665919 is about 370.0314533767.

The spelling of 50665919 in words is "fifty million, six hundred sixty-five thousand, nine hundred nineteen".