50289018 has 16 divisors (see below), whose sum is σ = 108314976. Its totient is φ = 15473520.

The previous prime is 50289007. The next prime is 50289097. The reversal of 50289018 is 81098205.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 50289018.

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, 322288 + ... + 322443.

It is an arithmetic number, because the mean of its divisors is an integer number (6769686).

Almost surely, 2^50289018 is an apocalyptic number.

50289018 is an abundant number, since it is smaller than the sum of its proper divisors (58025958).

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

50289018 is a wasteful number, since it uses less digits than its factorization.

50289018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644749.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 50289018 is about 7091.4750228708. The cubic root of 50289018 is about 369.1116208172. Note that the first 3 decimals are identical.

The spelling of 50289018 in words is "fifty million, two hundred eighty-nine thousand, eighteen".