50989887 has 24 divisors (see below), whose sum is σ = 80078544. Its totient is φ = 31077504.

The previous prime is 50989871. The next prime is 50989889. The reversal of 50989887 is 78898905.

50989887 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 50989887 - 2⁴ = 50989871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50989889) 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 23 ways as a sum of consecutive naturals, for example, 10483 + ... + 14555.

It is an arithmetic number, because the mean of its divisors is an integer number (3336606).

Almost surely, 2^50989887 is an apocalyptic number.

50989887 is a deficient number, since it is larger than the sum of its proper divisors (29088657).

50989887 is a wasteful number, since it uses less digits than its factorization.

50989887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199 (or 4196 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The square root of 50989887 is about 7140.7203418143. The cubic root of 50989887 is about 370.8184633126.

The spelling of 50989887 in words is "fifty million, nine hundred eighty-nine thousand, eight hundred eighty-seven".