50448138 has 16 divisors (see below), whose sum is σ = 108657696. Its totient is φ = 15522480.

The previous prime is 50448133. The next prime is 50448157. The reversal of 50448138 is 83184405.

It is a junction number, because it is equal to n+sod(n) for n = 50448099 and 50448108.

It is not an unprimeable number, because it can be changed into a prime (50448133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323308 + ... + 323463.

It is an arithmetic number, because the mean of its divisors is an integer number (6791106).

Almost surely, 2^50448138 is an apocalyptic number.

50448138 is an abundant number, since it is smaller than the sum of its proper divisors (58209558).

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

50448138 is a wasteful number, since it uses less digits than its factorization.

50448138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646789.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 50448138 is about 7102.6852668551. The cubic root of 50448138 is about 369.5005142321.

The spelling of 50448138 in words is "fifty million, four hundred forty-eight thousand, one hundred thirty-eight".