49747985 has 24 divisors (see below), whose sum is σ = 73105920. Its totient is φ = 32314464.

The previous prime is 49747981. The next prime is 49748003. The reversal of 49747985 is 58974794.

It is not a de Polignac number, because 49747985 - 2² = 49747981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49747981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 689 + ... + 9998.

It is an arithmetic number, because the mean of its divisors is an integer number (3046080).

Almost surely, 2^49747985 is an apocalyptic number.

It is an amenable number.

49747985 is a deficient number, since it is larger than the sum of its proper divisors (23357935).

49747985 is a wasteful number, since it uses less digits than its factorization.

49747985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10725 (or 10718 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 53.

The square root of 49747985 is about 7053.2251488238. The cubic root of 49747985 is about 367.7831529054.

The spelling of 49747985 in words is "forty-nine million, seven hundred forty-seven thousand, nine hundred eighty-five".