50512739 has 4 divisors (see below), whose sum is σ = 50876280. Its totient is φ = 50149200.

The previous prime is 50512717. The next prime is 50512747. The reversal of 50512739 is 93721505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50512739 - 2¹² = 50508643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50512789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181562 + ... + 181839.

It is an arithmetic number, because the mean of its divisors is an integer number (12719070).

Almost surely, 2^50512739 is an apocalyptic number.

50512739 is a deficient number, since it is larger than the sum of its proper divisors (363541).

50512739 is a wasteful number, since it uses less digits than its factorization.

50512739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363540.

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

The square root of 50512739 is about 7107.2314581699. The cubic root of 50512739 is about 369.6581673653.

The spelling of 50512739 in words is "fifty million, five hundred twelve thousand, seven hundred thirty-nine".