49605009 has 4 divisors (see below), whose sum is σ = 66140016. Its totient is φ = 33070004.

The previous prime is 49604959. The next prime is 49605013. The reversal of 49605009 is 90050694.

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 49605009 - 2¹¹ = 49602961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49605019) 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, 8267499 + ... + 8267504.

It is an arithmetic number, because the mean of its divisors is an integer number (16535004).

Almost surely, 2^49605009 is an apocalyptic number.

It is an amenable number.

49605009 is a deficient number, since it is larger than the sum of its proper divisors (16535007).

49605009 is a wasteful number, since it uses less digits than its factorization.

49605009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16535006.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 49605009 is about 7043.0823507893. The cubic root of 49605009 is about 367.4304778480.

The spelling of 49605009 in words is "forty-nine million, six hundred five thousand, nine".