55985193 has 12 divisors (see below), whose sum is σ = 88219248. Its totient is φ = 33930360.

The previous prime is 55985177. The next prime is 55985203. The reversal of 55985193 is 39158955.

55985193 is a `hidden beast` number, since 5 + 598 + 51 + 9 + 3 = 666.

It is not a de Polignac number, because 55985193 - 2⁴ = 55985177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55985113) 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 11 ways as a sum of consecutive naturals, for example, 282655 + ... + 282852.

It is an arithmetic number, because the mean of its divisors is an integer number (7351604).

Almost surely, 2^55985193 is an apocalyptic number.

It is an amenable number.

55985193 is a deficient number, since it is larger than the sum of its proper divisors (32234055).

55985193 is a wasteful number, since it uses less digits than its factorization.

55985193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565524 (or 565521 counting only the distinct ones).

The product of its digits is 243000, while the sum is 45.

The square root of 55985193 is about 7482.3253738393. The cubic root of 55985193 is about 382.5525136154.

The spelling of 55985193 in words is "fifty-five million, nine hundred eighty-five thousand, one hundred ninety-three".