50715129 has 4 divisors (see below), whose sum is σ = 67620176. Its totient is φ = 33810084.

The previous prime is 50715109. The next prime is 50715143. The reversal of 50715129 is 92151705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 50715129 - 2⁹ = 50714617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50715096 and 50715105.

It is not an unprimeable number, because it can be changed into a prime (50715109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8452519 + ... + 8452524.

It is an arithmetic number, because the mean of its divisors is an integer number (16905044).

Almost surely, 2^50715129 is an apocalyptic number.

It is an amenable number.

50715129 is a deficient number, since it is larger than the sum of its proper divisors (16905047).

50715129 is a wasteful number, since it uses less digits than its factorization.

50715129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16905046.

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 50715129 is about 7121.4555394245. The cubic root of 50715129 is about 370.1512140629.

The spelling of 50715129 in words is "fifty million, seven hundred fifteen thousand, one hundred twenty-nine".