55586638 has 8 divisors (see below), whose sum is σ = 83504088. Its totient is φ = 27751944.

The previous prime is 55586633. The next prime is 55586639. The reversal of 55586638 is 83668555.

55586638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55586633) 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 3 ways as a sum of consecutive naturals, for example, 18981 + ... + 21712.

It is an arithmetic number, because the mean of its divisors is an integer number (10438011).

Almost surely, 2^55586638 is an apocalyptic number.

55586638 is a deficient number, since it is larger than the sum of its proper divisors (27917450).

55586638 is a wasteful number, since it uses less digits than its factorization.

55586638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41378.

The product of its digits is 864000, while the sum is 46.

The square root of 55586638 is about 7455.6447072000. The cubic root of 55586638 is about 381.6425619511.

The spelling of 55586638 in words is "fifty-five million, five hundred eighty-six thousand, six hundred thirty-eight".