55605593 has 2 divisors, whose sum is σ = 55605594. Its totient is φ = 55605592.

The previous prime is 55605581. The next prime is 55605607. The reversal of 55605593 is 39550655.

It is a happy number.

55605593 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28430224 + 27175369 = 5332^2 + 5213^2 .

It is a cyclic number.

It is not a de Polignac number, because 55605593 - 2⁴ = 55605577 is a prime.

It is not a weakly prime, because it can be changed into another prime (55605503) 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 as a sum of consecutive naturals, namely, 27802796 + 27802797.

It is an arithmetic number, because the mean of its divisors is an integer number (27802797).

Almost surely, 2^55605593 is an apocalyptic number.

It is an amenable number.

55605593 is a deficient number, since it is larger than the sum of its proper divisors (1).

55605593 is an equidigital number, since it uses as much as digits as its factorization.

55605593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 101250, while the sum is 38.

The square root of 55605593 is about 7456.9157833517. The cubic root of 55605593 is about 381.6859369594.

The spelling of 55605593 in words is "fifty-five million, six hundred five thousand, five hundred ninety-three".