50287809 has 48 divisors (see below), whose sum is σ = 80953344. Its totient is φ = 27518400.

The previous prime is 50287801. The next prime is 50287849. The reversal of 50287809 is 90878205.

It is not a de Polignac number, because 50287809 - 2³ = 50287801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (50287801) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 395904 + ... + 396030.

It is an arithmetic number, because the mean of its divisors is an integer number (1686528).

Almost surely, 2^50287809 is an apocalyptic number.

It is an amenable number.

50287809 is a deficient number, since it is larger than the sum of its proper divisors (30665535).

50287809 is a wasteful number, since it uses less digits than its factorization.

50287809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 50287809 is about 7091.3897791618. The cubic root of 50287809 is about 369.1086628518.

The spelling of 50287809 in words is "fifty million, two hundred eighty-seven thousand, eight hundred nine".