50390065 has 8 divisors (see below), whose sum is σ = 65965248. Its totient is φ = 36647280.

The previous prime is 50390029. The next prime is 50390069. The reversal of 50390065 is 56009305.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50390065 - 2⁹ = 50389553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50390069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458037 + ... + 458146.

It is an arithmetic number, because the mean of its divisors is an integer number (8245656).

Almost surely, 2^50390065 is an apocalyptic number.

50390065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50390065 is a deficient number, since it is larger than the sum of its proper divisors (15575183).

50390065 is a wasteful number, since it uses less digits than its factorization.

50390065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916199.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 50390065 is about 7098.5959879402. The cubic root of 50390065 is about 369.3586772009.

The spelling of 50390065 in words is "fifty million, three hundred ninety thousand, sixty-five".