50305140 has 144 divisors (see below), whose sum is σ = 165110400. Its totient is φ = 12359424.

The previous prime is 50305121. The next prime is 50305187. The reversal of 50305140 is 4150305.

It is a super-2 number, since 2×50305140² = 5061214220839200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119851 + ... + 120269.

It is an arithmetic number, because the mean of its divisors is an integer number (1146600).

Almost surely, 2^50305140 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 50305140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82555200).

50305140 is an abundant number, since it is smaller than the sum of its proper divisors (114805260).

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

50305140 is a wasteful number, since it uses less digits than its factorization.

50305140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 50305140 is about 7092.6116487511. The cubic root of 50305140 is about 369.1510607187.

Adding to 50305140 its reverse (4150305), we get a palindrome (54455445).

The spelling of 50305140 in words is "fifty million, three hundred five thousand, one hundred forty".