50757909 has 4 divisors (see below), whose sum is σ = 67677216. Its totient is φ = 33838604.

The previous prime is 50757907. The next prime is 50757913. The reversal of 50757909 is 90975705.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 50757909 - 2¹ = 50757907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50757901) 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, 8459649 + ... + 8459654.

It is an arithmetic number, because the mean of its divisors is an integer number (16919304).

Almost surely, 2^50757909 is an apocalyptic number.

It is an amenable number.

50757909 is a deficient number, since it is larger than the sum of its proper divisors (16919307).

50757909 is a wasteful number, since it uses less digits than its factorization.

50757909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16919306.

The product of its (nonzero) digits is 99225, while the sum is 42.

The square root of 50757909 is about 7124.4585057392. The cubic root of 50757909 is about 370.2552633466.

The spelling of 50757909 in words is "fifty million, seven hundred fifty-seven thousand, nine hundred nine".