66055303 has 2 divisors, whose sum is σ = 66055304. Its totient is φ = 66055302.

The previous prime is 66055259. The next prime is 66055337. The reversal of 66055303 is 30355066.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66055303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66055373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33027651 + 33027652.

It is an arithmetic number, because the mean of its divisors is an integer number (33027652).

Almost surely, 2^66055303 is an apocalyptic number.

66055303 is a deficient number, since it is larger than the sum of its proper divisors (1).

66055303 is an equidigital number, since it uses as much as digits as its factorization.

66055303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 66055303 is about 8127.4413562941. The cubic root of 66055303 is about 404.2368456494.

The spelling of 66055303 in words is "sixty-six million, fifty-five thousand, three hundred three".