55585443 has 8 divisors (see below), whose sum is σ = 75691008. Its totient is φ = 36268424.

The previous prime is 55585429. The next prime is 55585447. The reversal of 55585443 is 34458555.

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 55585443 - 2¹⁸ = 55323299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55585447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196971 + ... + 197252.

It is an arithmetic number, because the mean of its divisors is an integer number (9461376).

Almost surely, 2^55585443 is an apocalyptic number.

55585443 is a deficient number, since it is larger than the sum of its proper divisors (20105565).

55585443 is a wasteful number, since it uses less digits than its factorization.

55585443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394273.

The product of its digits is 240000, while the sum is 39.

The square root of 55585443 is about 7455.5645661479. The cubic root of 55585443 is about 381.6398270844.

The spelling of 55585443 in words is "fifty-five million, five hundred eighty-five thousand, four hundred forty-three".