50135729 has 4 divisors (see below), whose sum is σ = 57297984. Its totient is φ = 42973476.

The previous prime is 50135689. The next prime is 50135731. The reversal of 50135729 is 92753105.

50135729 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 50135729 - 2²⁴ = 33358513 is a prime.

It is a super-2 number, since 2×50135729² = 5027182644722882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50135695 and 50135704.

It is not an unprimeable number, because it can be changed into a prime (50135759) 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, 3581117 + ... + 3581130.

It is an arithmetic number, because the mean of its divisors is an integer number (14324496).

Almost surely, 2^50135729 is an apocalyptic number.

It is an amenable number.

50135729 is a deficient number, since it is larger than the sum of its proper divisors (7162255).

50135729 is an equidigital number, since it uses as much as digits as its factorization.

50135729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7162254.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 50135729 is about 7080.6587970329. The cubic root of 50135729 is about 368.7362019543.

The spelling of 50135729 in words is "fifty million, one hundred thirty-five thousand, seven hundred twenty-nine".