50771978 has 16 divisors (see below), whose sum is σ = 77686560. Its totient is φ = 24879216.

The previous prime is 50771969. The next prime is 50771983. The reversal of 50771978 is 87917705.

It is a Curzon number.

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, 68900 + ... + 69632.

It is an arithmetic number, because the mean of its divisors is an integer number (4855410).

Almost surely, 2^50771978 is an apocalyptic number.

50771978 is a deficient number, since it is larger than the sum of its proper divisors (26914582).

50771978 is a wasteful number, since it uses less digits than its factorization.

50771978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381.

The product of its (nonzero) digits is 123480, while the sum is 44.

The square root of 50771978 is about 7125.4458106142. The cubic root of 50771978 is about 370.2894691167.

The spelling of 50771978 in words is "fifty million, seven hundred seventy-one thousand, nine hundred seventy-eight".