50013312 has 64 divisors (see below), whose sum is σ = 133946400. Its totient is φ = 16533504.

The previous prime is 50013251. The next prime is 50013347. The reversal of 50013312 is 21331005.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 50013291 and 50013300.

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 7 ways as a sum of consecutive naturals, for example, 52908 + ... + 53844.

Almost surely, 2^50013312 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 50013312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66973200).

50013312 is an abundant number, since it is smaller than the sum of its proper divisors (83933088).

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

50013312 is a wasteful number, since it uses less digits than its factorization.

50013312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 50013312 is about 7072.0090497680. The cubic root of 50013312 is about 368.4358415145.

Adding to 50013312 its reverse (21331005), we get a palindrome (71344317).

The spelling of 50013312 in words is "fifty million, thirteen thousand, three hundred twelve".