50185540 has 48 divisors (see below), whose sum is σ = 111444480. Its totient is φ = 18944640.

The previous prime is 50185501. The next prime is 50185549. The reversal of 50185540 is 4558105.

It is a junction number, because it is equal to n+sod(n) for n = 50185499 and 50185508.

It is not an unprimeable number, because it can be changed into a prime (50185549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35650 + ... + 37030.

It is an arithmetic number, because the mean of its divisors is an integer number (2321760).

Almost surely, 2^50185540 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 50185540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55722240).

50185540 is an abundant number, since it is smaller than the sum of its proper divisors (61258940).

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

50185540 is a wasteful number, since it uses less digits than its factorization.

50185540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492 (or 1490 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 50185540 is about 7084.1753225058. The cubic root of 50185540 is about 368.8582775010.

The spelling of 50185540 in words is "fifty million, one hundred eighty-five thousand, five hundred forty".