50440012 has 72 divisors (see below), whose sum is σ = 109396224. Its totient is φ = 20246688.

The previous prime is 50440009. The next prime is 50440031. The reversal of 50440012 is 21004405.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 301953 + ... + 302119.

It is an arithmetic number, because the mean of its divisors is an integer number (1519392).

Almost surely, 2^50440012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50440012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54698112).

50440012 is an abundant number, since it is smaller than the sum of its proper divisors (58956212).

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

50440012 is a wasteful number, since it uses less digits than its factorization.

50440012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 50440012 is about 7102.1132066449. The cubic root of 50440012 is about 369.4806739068.

Adding to 50440012 its reverse (21004405), we get a palindrome (71444417).

The spelling of 50440012 in words is "fifty million, four hundred forty thousand, twelve".