50185140 has 48 divisors (see below), whose sum is σ = 141849792. Its totient is φ = 13255936.

The previous prime is 50185129. The next prime is 50185199. The reversal of 50185140 is 4158105.

It is a self number, because there is not a number n which added to its sum of digits gives 50185140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2512 + ... + 10328.

It is an arithmetic number, because the mean of its divisors is an integer number (2955204).

Almost surely, 2^50185140 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 50185140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70924896).

50185140 is an abundant number, since it is smaller than the sum of its proper divisors (91664652).

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

50185140 is a wasteful number, since it uses less digits than its factorization.

50185140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7936 (or 7934 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 50185140 is about 7084.1470905113. The cubic root of 50185140 is about 368.8572975129.

The spelling of 50185140 in words is "fifty million, one hundred eighty-five thousand, one hundred forty".