50909811 has 8 divisors (see below), whose sum is σ = 67951824. Its totient is φ = 33903840.

The previous prime is 50909791. The next prime is 50909813. The reversal of 50909811 is 11890905.

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

It is not a de Polignac number, because 50909811 - 2⁵ = 50909779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50909813) 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, 5520 + ... + 11501.

It is an arithmetic number, because the mean of its divisors is an integer number (8493978).

Almost surely, 2^50909811 is an apocalyptic number.

50909811 is a deficient number, since it is larger than the sum of its proper divisors (17042013).

50909811 is a wasteful number, since it uses less digits than its factorization.

50909811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18021.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 50909811 is about 7135.1111413909. Note that the first 4 decimals coincide. The cubic root of 50909811 is about 370.6242469132.

The spelling of 50909811 in words is "fifty million, nine hundred nine thousand, eight hundred eleven".