50129709 has 32 divisors (see below), whose sum is σ = 79161600. Its totient is φ = 27620352.

The previous prime is 50129707. The next prime is 50129747. The reversal of 50129709 is 90792105.

It is not a de Polignac number, because 50129709 - 2¹ = 50129707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50129709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50129707) 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 31 ways as a sum of consecutive naturals, for example, 115557 + ... + 115989.

It is an arithmetic number, because the mean of its divisors is an integer number (2473800).

Almost surely, 2^50129709 is an apocalyptic number.

It is an amenable number.

50129709 is a deficient number, since it is larger than the sum of its proper divisors (29031891).

50129709 is a wasteful number, since it uses less digits than its factorization.

50129709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 50129709 is about 7080.2336825842. The cubic root of 50129709 is about 368.7214428139.

The spelling of 50129709 in words is "fifty million, one hundred twenty-nine thousand, seven hundred nine".