49999911 has 16 divisors (see below), whose sum is σ = 72540384. Its totient is φ = 30449664.

The previous prime is 49999903. The next prime is 49999921. The reversal of 49999911 is 11999994.

It is not a de Polignac number, because 49999911 - 2³ = 49999903 is a prime.

It is a super-2 number, since 2×49999911² = 4999982200015842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49999921) 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, 2826 + ... + 10391.

It is an arithmetic number, because the mean of its divisors is an integer number (4533774).

Almost surely, 2^49999911 is an apocalyptic number.

49999911 is a deficient number, since it is larger than the sum of its proper divisors (22540473).

49999911 is a wasteful number, since it uses less digits than its factorization.

49999911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13330.

The product of its digits is 236196, while the sum is 51.

The square root of 49999911 is about 7071.0615186123. The cubic root of 49999911 is about 368.4029312780.

The spelling of 49999911 in words is "forty-nine million, nine hundred ninety-nine thousand, nine hundred eleven".