5638559850 has 672 divisors, whose sum is σ = 20492438400. Its totient is φ = 1143072000.

The previous prime is 5638559791. The next prime is 5638559893. The reversal of 5638559850 is 589558365.

5638559850 is a `hidden beast` number, since 5 + 6 + 3 + 8 + 559 + 85 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 137525830 + ... + 137525870.

It is an arithmetic number, because the mean of its divisors is an integer number (30494700).

Almost surely, 2^5638559850 is an apocalyptic number.

5638559850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5638559850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10246219200).

5638559850 is an abundant number, since it is smaller than the sum of its proper divisors (14853878550).

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

5638559850 is a wasteful number, since it uses less digits than its factorization.

5638559850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 54.

The square root of 5638559850 is about 75090.3445857056. The cubic root of 5638559850 is about 1779.8745703394.

The spelling of 5638559850 in words is "five billion, six hundred thirty-eight million, five hundred fifty-nine thousand, eight hundred fifty".