49450209 has 4 divisors (see below), whose sum is σ = 65933616. Its totient is φ = 32966804.

The previous prime is 49450189. The next prime is 49450211. The reversal of 49450209 is 90205494.

49450209 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 a cyclic number.

It is not a de Polignac number, because 49450209 - 2¹³ = 49442017 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49450209.

It is not an unprimeable number, because it can be changed into a prime (49450259) 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, 8241699 + ... + 8241704.

It is an arithmetic number, because the mean of its divisors is an integer number (16483404).

Almost surely, 2^49450209 is an apocalyptic number.

It is an amenable number.

49450209 is a deficient number, since it is larger than the sum of its proper divisors (16483407).

49450209 is a wasteful number, since it uses less digits than its factorization.

49450209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16483406.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 49450209 is about 7032.0842571744. The cubic root of 49450209 is about 367.0478719537.

The spelling of 49450209 in words is "forty-nine million, four hundred fifty thousand, two hundred nine".