50899709 has 4 divisors (see below), whose sum is σ = 58171104. Its totient is φ = 43628316.

The previous prime is 50899661. The next prime is 50899711. The reversal of 50899709 is 90799805.

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 50899709 - 2¹² = 50895613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50899729) 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, 3635687 + ... + 3635700.

It is an arithmetic number, because the mean of its divisors is an integer number (14542776).

Almost surely, 2^50899709 is an apocalyptic number.

It is an amenable number.

50899709 is a deficient number, since it is larger than the sum of its proper divisors (7271395).

50899709 is an equidigital number, since it uses as much as digits as its factorization.

50899709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7271394.

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 50899709 is about 7134.4031985864. The cubic root of 50899709 is about 370.5997310505.

The spelling of 50899709 in words is "fifty million, eight hundred ninety-nine thousand, seven hundred nine".