50779911 has 16 divisors (see below), whose sum is σ = 83331584. Its totient is φ = 26784864.

The previous prime is 50779909. The next prime is 50779931. The reversal of 50779911 is 11997705.

50779911 = 1898² + 1899² + ... + 1911².

50779911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50779911 - 2¹ = 50779909 is a prime.

It is a super-2 number, since 2×50779911² = 5157198722335842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 50779911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50779931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92731 + ... + 93276.

It is an arithmetic number, because the mean of its divisors is an integer number (5208224).

Almost surely, 2^50779911 is an apocalyptic number.

50779911 is a deficient number, since it is larger than the sum of its proper divisors (32551673).

50779911 is a wasteful number, since it uses less digits than its factorization.

50779911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186030.

The product of its (nonzero) digits is 19845, while the sum is 39.

The square root of 50779911 is about 7126.0024557953. The cubic root of 50779911 is about 370.3087537266.

The spelling of 50779911 in words is "fifty million, seven hundred seventy-nine thousand, nine hundred eleven".