49805985 has 16 divisors (see below), whose sum is σ = 79983936. Its totient is φ = 26465088.

The previous prime is 49805983. The next prime is 49805989. The reversal of 49805985 is 58950894.

It is a happy number.

It is not a de Polignac number, because 49805985 - 2¹ = 49805983 is a prime.

It is a super-2 number, since 2×49805985² = 4961272283640450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49805981) 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 15 ways as a sum of consecutive naturals, for example, 1839 + ... + 10148.

It is an arithmetic number, because the mean of its divisors is an integer number (4998996).

Almost surely, 2^49805985 is an apocalyptic number.

It is an amenable number.

49805985 is a deficient number, since it is larger than the sum of its proper divisors (30177951).

49805985 is a wasteful number, since it uses less digits than its factorization.

49805985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12272.

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 49805985 is about 7057.3355453740. The cubic root of 49805985 is about 367.9260272905.

The spelling of 49805985 in words is "forty-nine million, eight hundred five thousand, nine hundred eighty-five".