50777978 has 16 divisors (see below), whose sum is σ = 77074944. Its totient is φ = 25088400.

The previous prime is 50777959. The next prime is 50777981. The reversal of 50777978 is 87977705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83351 + ... + 83957.

It is an arithmetic number, because the mean of its divisors is an integer number (4817184).

Almost surely, 2^50777978 is an apocalyptic number.

50777978 is a deficient number, since it is larger than the sum of its proper divisors (26296966).

50777978 is a wasteful number, since it uses less digits than its factorization.

50777978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037.

The product of its (nonzero) digits is 864360, while the sum is 50.

The square root of 50777978 is about 7125.8668244642. The cubic root of 50777978 is about 370.3040549137.

The spelling of 50777978 in words is "fifty million, seven hundred seventy-seven thousand, nine hundred seventy-eight".