50309405 has 4 divisors (see below), whose sum is σ = 60371292. Its totient is φ = 40247520.

The previous prime is 50309401. The next prime is 50309417. The reversal of 50309405 is 50490305.

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 8797156 + 41512249 = 2966^2 + 6443^2 .

It is not a de Polignac number, because 50309405 - 2² = 50309401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50309401) by changing a digit.

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, 5030936 + ... + 5030945.

It is an arithmetic number, because the mean of its divisors is an integer number (15092823).

Almost surely, 2^50309405 is an apocalyptic number.

It is an amenable number.

50309405 is a deficient number, since it is larger than the sum of its proper divisors (10061887).

50309405 is a wasteful number, since it uses less digits than its factorization.

50309405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10061886.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 50309405 is about 7092.9123073671. The cubic root of 50309405 is about 369.1614929514.

The spelling of 50309405 in words is "fifty million, three hundred nine thousand, four hundred five".