5638555427 has 8 divisors (see below), whose sum is σ = 5970932352. Its totient is φ = 5306256000.

The previous prime is 5638555423. The next prime is 5638555441. The reversal of 5638555427 is 7245558365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5638555427 - 2² = 5638555423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5638555421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 204302 + ... + 230252.

It is an arithmetic number, because the mean of its divisors is an integer number (746366544).

Almost surely, 2^5638555427 is an apocalyptic number.

5638555427 is a deficient number, since it is larger than the sum of its proper divisors (332376925).

5638555427 is a wasteful number, since it uses less digits than its factorization.

5638555427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38749.

The product of its digits is 5040000, while the sum is 50.

The square root of 5638555427 is about 75090.3151345099. The cubic root of 5638555427 is about 1779.8741049494.

The spelling of 5638555427 in words is "five billion, six hundred thirty-eight million, five hundred fifty-five thousand, four hundred twenty-seven".