49637985 has 16 divisors (see below), whose sum is σ = 79552320. Its totient is φ = 26429760.

The previous prime is 49637981. The next prime is 49637989. The reversal of 49637985 is 58973694.

It is an interprime number because it is at equal distance from previous prime (49637981) and next prime (49637989).

It is not a de Polignac number, because 49637985 - 2² = 49637981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49637981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7971 + ... + 12759.

It is an arithmetic number, because the mean of its divisors is an integer number (4972020).

Almost surely, 2^49637985 is an apocalyptic number.

It is an amenable number.

49637985 is a deficient number, since it is larger than the sum of its proper divisors (29914335).

49637985 is a wasteful number, since it uses less digits than its factorization.

49637985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488.

The product of its digits is 1632960, while the sum is 51.

The square root of 49637985 is about 7045.4229823340. The cubic root of 49637985 is about 367.5118789256.

The spelling of 49637985 in words is "forty-nine million, six hundred thirty-seven thousand, nine hundred eighty-five".