50005440 has 168 divisors, whose sum is σ = 174741840. Its totient is φ = 13123584.

The previous prime is 50005409. The next prime is 50005441. The reversal of 50005440 is 4450005.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50005441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279271 + ... + 279449.

It is an arithmetic number, because the mean of its divisors is an integer number (1040130).

Almost surely, 2^50005440 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 50005440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87370920).

50005440 is an abundant number, since it is smaller than the sum of its proper divisors (124736400).

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

50005440 is a wasteful number, since it uses less digits than its factorization.

50005440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 50005440 is about 7071.4524674921. The cubic root of 50005440 is about 368.4165101338.

Adding to 50005440 its reverse (4450005), we get a palindrome (54455445).

It can be divided in two parts, 5000 and 5440, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 50005440 in words is "fifty million, five thousand, four hundred forty".