49889911 has 4 divisors (see below), whose sum is σ = 50009400. Its totient is φ = 49770424.

The previous prime is 49889893. The next prime is 49889923. The reversal of 49889911 is 11998894.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49889911 - 2¹³ = 49881719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49889971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59116 + ... + 59953.

It is an arithmetic number, because the mean of its divisors is an integer number (12502350).

Almost surely, 2^49889911 is an apocalyptic number.

49889911 is a deficient number, since it is larger than the sum of its proper divisors (119489).

49889911 is a wasteful number, since it uses less digits than its factorization.

49889911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119488.

The product of its digits is 186624, while the sum is 49.

The square root of 49889911 is about 7063.2790543769. The cubic root of 49889911 is about 368.1325702854.

It can be divided in two parts, 498 and 89911, that added together give a palindrome (90409).

The spelling of 49889911 in words is "forty-nine million, eight hundred eighty-nine thousand, nine hundred eleven".