55660201 has 2 divisors, whose sum is σ = 55660202. Its totient is φ = 55660200.

The previous prime is 55660169. The next prime is 55660211. The reversal of 55660201 is 10206655.

55660201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44235801 + 11424400 = 6651^2 + 3380^2 .

It is a cyclic number.

It is not a de Polignac number, because 55660201 - 2⁵ = 55660169 is a prime.

It is not a weakly prime, because it can be changed into another prime (55660211) 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, 27830100 + 27830101.

It is an arithmetic number, because the mean of its divisors is an integer number (27830101).

Almost surely, 2^55660201 is an apocalyptic number.

It is an amenable number.

55660201 is a deficient number, since it is larger than the sum of its proper divisors (1).

55660201 is an equidigital number, since it uses as much as digits as its factorization.

55660201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 55660201 is about 7460.5764522589. The cubic root of 55660201 is about 381.8108421784.

Adding to 55660201 its reverse (10206655), we get a palindrome (65866856).

The spelling of 55660201 in words is "fifty-five million, six hundred sixty thousand, two hundred one".