49638885 has 16 divisors (see below), whose sum is σ = 79522560. Its totient is φ = 26440640.

The previous prime is 49638881. The next prime is 49638889. The reversal of 49638885 is 58883694.

It is an interprime number because it is at equal distance from previous prime (49638881) and next prime (49638889).

It is not a de Polignac number, because 49638885 - 2² = 49638881 is a prime.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49638881) 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, 14356 + ... + 17474.

It is an arithmetic number, because the mean of its divisors is an integer number (4970160).

Almost surely, 2^49638885 is an apocalyptic number.

It is an amenable number.

49638885 is a deficient number, since it is larger than the sum of its proper divisors (29883675).

49638885 is a wasteful number, since it uses less digits than its factorization.

49638885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188.

The product of its digits is 1658880, while the sum is 51.

The square root of 49638885 is about 7045.4868532984. The cubic root of 49638885 is about 367.5141000652.

The spelling of 49638885 in words is "forty-nine million, six hundred thirty-eight thousand, eight hundred eighty-five".