50779986 has 32 divisors (see below), whose sum is σ = 111248640. Its totient is φ = 15380736.

The previous prime is 50779979. The next prime is 50779987. The reversal of 50779986 is 68997705.

50779986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (50779987) 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, 5626 + ... + 11541.

It is an arithmetic number, because the mean of its divisors is an integer number (3476520).

Almost surely, 2^50779986 is an apocalyptic number.

50779986 is an abundant number, since it is smaller than the sum of its proper divisors (60468654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50779986 is a wasteful number, since it uses less digits than its factorization.

50779986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17218.

The product of its (nonzero) digits is 952560, while the sum is 51.

The square root of 50779986 is about 7126.0077182108. The cubic root of 50779986 is about 370.3089360372.

The spelling of 50779986 in words is "fifty million, seven hundred seventy-nine thousand, nine hundred eighty-six".