55320193 has 16 divisors (see below), whose sum is σ = 60540480. Its totient is φ = 50342400.

The previous prime is 55320173. The next prime is 55320211. The reversal of 55320193 is 39102355.

It is a cyclic number.

It is not a de Polignac number, because 55320193 - 2²¹ = 53223041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55320173) 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 15 ways as a sum of consecutive naturals, for example, 96598 + ... + 97168.

It is an arithmetic number, because the mean of its divisors is an integer number (3783780).

Almost surely, 2^55320193 is an apocalyptic number.

It is an amenable number.

55320193 is a deficient number, since it is larger than the sum of its proper divisors (5220287).

55320193 is a wasteful number, since it uses less digits than its factorization.

55320193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 55320193 is about 7437.7545670720. The cubic root of 55320193 is about 381.0318057047.

The spelling of 55320193 in words is "fifty-five million, three hundred twenty thousand, one hundred ninety-three".