50609809 has 8 divisors (see below), whose sum is σ = 51592680. Its totient is φ = 49632000.

The previous prime is 50609807. The next prime is 50609813. The reversal of 50609809 is 90890605.

It can be written as a sum of positive squares in 4 ways, for example, as 2958400 + 47651409 = 1720^2 + 6903^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 50609809 - 2¹ = 50609807 is a prime.

It is a super-2 number, since 2×50609809² = 5122705534032962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50609807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23427 + ... + 25495.

It is an arithmetic number, because the mean of its divisors is an integer number (6449085).

Almost surely, 2^50609809 is an apocalyptic number.

It is an amenable number.

50609809 is a deficient number, since it is larger than the sum of its proper divisors (982871).

50609809 is a wasteful number, since it uses less digits than its factorization.

50609809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 50609809 is about 7114.0571406195. The cubic root of 50609809 is about 369.8948057416.

The spelling of 50609809 in words is "fifty million, six hundred nine thousand, eight hundred nine".