50521018 has 16 divisors (see below), whose sum is σ = 79335360. Its totient is φ = 24083136.

The previous prime is 50520997. The next prime is 50521027. The reversal of 50521018 is 81012505.

50521018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 50521018.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13873 + ... + 17131.

It is an arithmetic number, because the mean of its divisors is an integer number (4958460).

Almost surely, 2^50521018 is an apocalyptic number.

50521018 is a deficient number, since it is larger than the sum of its proper divisors (28814342).

50521018 is a wasteful number, since it uses less digits than its factorization.

50521018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 50521018 is about 7107.8138692568. The cubic root of 50521018 is about 369.6783618275.

The spelling of 50521018 in words is "fifty million, five hundred twenty-one thousand, eighteen".