50511133 has 4 divisors (see below), whose sum is σ = 50527228. Its totient is φ = 50495040.

The previous prime is 50511107. The next prime is 50511137. The reversal of 50511133 is 33111505.

50511133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10099684 + 40411449 = 3178^2 + 6357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50511133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50511133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50511137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1638 + ... + 10183.

It is an arithmetic number, because the mean of its divisors is an integer number (12631807).

Almost surely, 2^50511133 is an apocalyptic number.

It is an amenable number.

50511133 is a deficient number, since it is larger than the sum of its proper divisors (16095).

50511133 is a wasteful number, since it uses less digits than its factorization.

50511133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16094.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 50511133 is about 7107.1184737557. The cubic root of 50511133 is about 369.6542496915.

Adding to 50511133 its reverse (33111505), we get a palindrome (83622638).

The spelling of 50511133 in words is "fifty million, five hundred eleven thousand, one hundred thirty-three".