50489778 has 32 divisors (see below), whose sum is σ = 104146560. Its totient is φ = 16307840.

The previous prime is 50489771. The next prime is 50489801. The reversal of 50489778 is 87798405.

It is not an unprimeable number, because it can be changed into a prime (50489771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40468 + ... + 41696.

It is an arithmetic number, because the mean of its divisors is an integer number (3254580).

Almost surely, 2^50489778 is an apocalyptic number.

50489778 is an abundant number, since it is smaller than the sum of its proper divisors (53656782).

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

50489778 is a wasteful number, since it uses less digits than its factorization.

50489778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442.

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 50489778 is about 7105.6159479668. The cubic root of 50489778 is about 369.6021484433.

The spelling of 50489778 in words is "fifty million, four hundred eighty-nine thousand, seven hundred seventy-eight".