49605309 has 12 divisors (see below), whose sum is σ = 77163996. Its totient is φ = 30526272.

The previous prime is 49605299. The next prime is 49605317. The reversal of 49605309 is 90350694.

49605309 is a `hidden beast` number, since 49 + 605 + 3 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18301284 + 31304025 = 4278^2 + 5595^2 .

It is not a de Polignac number, because 49605309 - 2⁵ = 49605277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49605349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211872 + ... + 212105.

It is an arithmetic number, because the mean of its divisors is an integer number (6430333).

Almost surely, 2^49605309 is an apocalyptic number.

It is an amenable number.

49605309 is a deficient number, since it is larger than the sum of its proper divisors (27558687).

49605309 is a wasteful number, since it uses less digits than its factorization.

49605309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423996 (or 423993 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 49605309 is about 7043.1036482505. The cubic root of 49605309 is about 367.4312185590.

The spelling of 49605309 in words is "forty-nine million, six hundred five thousand, three hundred nine".