50684009 has 4 divisors (see below), whose sum is σ = 51543120. Its totient is φ = 49824900.

The previous prime is 50683993. The next prime is 50684017. The reversal of 50684009 is 90048605.

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 50684009 - 2⁴ = 50683993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50684209) 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, 429467 + ... + 429584.

It is an arithmetic number, because the mean of its divisors is an integer number (12885780).

Almost surely, 2^50684009 is an apocalyptic number.

50684009 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

50684009 is a deficient number, since it is larger than the sum of its proper divisors (859111).

50684009 is an equidigital number, since it uses as much as digits as its factorization.

50684009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859110.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 50684009 is about 7119.2702575475. The cubic root of 50684009 is about 370.0754873981.

The spelling of 50684009 in words is "fifty million, six hundred eighty-four thousand, nine".