66747053 has 2 divisors, whose sum is σ = 66747054. Its totient is φ = 66747052.

The previous prime is 66747047. The next prime is 66747073. The reversal of 66747053 is 35074766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42016324 + 24730729 = 6482^2 + 4973^2 .

It is a cyclic number.

It is not a de Polignac number, because 66747053 - 2¹⁴ = 66730669 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66746998 and 66747016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66747013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33373526 + 33373527.

It is an arithmetic number, because the mean of its divisors is an integer number (33373527).

Almost surely, 2^66747053 is an apocalyptic number.

It is an amenable number.

66747053 is a deficient number, since it is larger than the sum of its proper divisors (1).

66747053 is an equidigital number, since it uses as much as digits as its factorization.

66747053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 66747053 is about 8169.8869637223. The cubic root of 66747053 is about 405.6430428828.

The spelling of 66747053 in words is "sixty-six million, seven hundred forty-seven thousand, fifty-three".