50855905 has 4 divisors (see below), whose sum is σ = 61027092. Its totient is φ = 40684720.

The previous prime is 50855899. The next prime is 50855947. The reversal of 50855905 is 50955805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50955805 = 5 ⋅10191161.

It can be written as a sum of positive squares in 2 ways, for example, as 34152336 + 16703569 = 5844^2 + 4087^2 .

It is not a de Polignac number, because 50855905 - 2⁵ = 50855873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5085586 + ... + 5085595.

It is an arithmetic number, because the mean of its divisors is an integer number (15256773).

Almost surely, 2^50855905 is an apocalyptic number.

It is an amenable number.

50855905 is a deficient number, since it is larger than the sum of its proper divisors (10171187).

50855905 is a wasteful number, since it uses less digits than its factorization.

50855905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10171186.

The product of its (nonzero) digits is 45000, while the sum is 37.

The square root of 50855905 is about 7131.3326244118. The cubic root of 50855905 is about 370.4933885320.

Adding to 50855905 its product of nonzero digits (45000), we get a palindrome (50900905).

The spelling of 50855905 in words is "fifty million, eight hundred fifty-five thousand, nine hundred five".