50511005 has 4 divisors (see below), whose sum is σ = 60613212. Its totient is φ = 40408800.

The previous prime is 50510981. The next prime is 50511007. The reversal of 50511005 is 50011505.

50511005 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 13227769 + 37283236 = 3637^2 + 6106^2 .

It is not a de Polignac number, because 50511005 - 2¹⁶ = 50445469 is a prime.

It is a super-2 number, since 2×50511005² = 5102723252220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50511007) 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, 5051096 + ... + 5051105.

It is an arithmetic number, because the mean of its divisors is an integer number (15153303).

Almost surely, 2^50511005 is an apocalyptic number.

It is an amenable number.

50511005 is a deficient number, since it is larger than the sum of its proper divisors (10102207).

50511005 is a wasteful number, since it uses less digits than its factorization.

50511005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102206.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 50511005 is about 7107.1094686940. The cubic root of 50511005 is about 369.6539374449.

Subtracting from 50511005 its reverse (50011505), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 50511005 in words is "fifty million, five hundred eleven thousand, five".