49778911 has 8 divisors (see below), whose sum is σ = 61266464. Its totient is φ = 39385440.

The previous prime is 49778887. The next prime is 49778929. The reversal of 49778911 is 11987794.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49778911 - 2⁷ = 49778783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49778411) 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 7 ways as a sum of consecutive naturals, for example, 273420 + ... + 273601.

It is an arithmetic number, because the mean of its divisors is an integer number (7658308).

Almost surely, 2^49778911 is an apocalyptic number.

49778911 is a deficient number, since it is larger than the sum of its proper divisors (11487553).

49778911 is a wasteful number, since it uses less digits than its factorization.

49778911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547041.

The product of its digits is 127008, while the sum is 46.

The square root of 49778911 is about 7055.4171386248. The cubic root of 49778911 is about 367.8593483244.

The spelling of 49778911 in words is "forty-nine million, seven hundred seventy-eight thousand, nine hundred eleven".