50243809 has 32 divisors (see below), whose sum is σ = 67138560. Its totient is φ = 36417600.

The previous prime is 50243807. The next prime is 50243813. The reversal of 50243809 is 90834205.

It is a cyclic number.

It is not a de Polignac number, because 50243809 - 2¹ = 50243807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50243803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88962 + ... + 89524.

It is an arithmetic number, because the mean of its divisors is an integer number (2098080).

Almost surely, 2^50243809 is an apocalyptic number.

It is an amenable number.

50243809 is a deficient number, since it is larger than the sum of its proper divisors (16894751).

50243809 is a wasteful number, since it uses less digits than its factorization.

50243809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 50243809 is about 7088.2867464571. The cubic root of 50243809 is about 369.0009792303. Note that the first 3 decimals are identical.

The spelling of 50243809 in words is "fifty million, two hundred forty-three thousand, eight hundred nine".