50188985 has 36 divisors (see below), whose sum is σ = 77053284. Its totient is φ = 31268160.

The previous prime is 50188979. The next prime is 50188987. The reversal of 50188985 is 58988105.

It can be written as a sum of positive squares in 2 ways, for example, as 18593344 + 31595641 = 4312^2 + 5621^2 .

It is not a de Polignac number, because 50188985 - 2⁸ = 50188729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50188987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28799 + ... + 30491.

It is an arithmetic number, because the mean of its divisors is an integer number (2140369).

Almost surely, 2^50188985 is an apocalyptic number.

50188985 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50188985 is a deficient number, since it is larger than the sum of its proper divisors (26864299).

50188985 is a wasteful number, since it uses less digits than its factorization.

50188985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 44.

The square root of 50188985 is about 7084.4184659011. The cubic root of 50188985 is about 368.8667174334.

The spelling of 50188985 in words is "fifty million, one hundred eighty-eight thousand, nine hundred eighty-five".