55980193 has 4 divisors (see below), whose sum is σ = 55999108. Its totient is φ = 55961280.

The previous prime is 55980161. The next prime is 55980217. The reversal of 55980193 is 39108955.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39108955 = 5 ⋅7821791.

It can be written as a sum of positive squares in 2 ways, for example, as 21967969 + 34012224 = 4687^2 + 5832^2 .

It is a cyclic number.

It is not a de Polignac number, because 55980193 - 2⁵ = 55980161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55980103) 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 3 ways as a sum of consecutive naturals, for example, 3948 + ... + 11293.

It is an arithmetic number, because the mean of its divisors is an integer number (13999777).

Almost surely, 2^55980193 is an apocalyptic number.

It is an amenable number.

55980193 is a deficient number, since it is larger than the sum of its proper divisors (18915).

55980193 is a wasteful number, since it uses less digits than its factorization.

55980193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18914.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 55980193 is about 7481.9912456511. The cubic root of 55980193 is about 382.5411247736.

The spelling of 55980193 in words is "fifty-five million, nine hundred eighty thousand, one hundred ninety-three".