66225043 has 2 divisors, whose sum is σ = 66225044. Its totient is φ = 66225042.

The previous prime is 66225041. The next prime is 66225053. The reversal of 66225043 is 34052266.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66225043 - 2¹ = 66225041 is a prime.

Together with 66225041, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (66225041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33112521 + 33112522.

It is an arithmetic number, because the mean of its divisors is an integer number (33112522).

Almost surely, 2^66225043 is an apocalyptic number.

66225043 is a deficient number, since it is larger than the sum of its proper divisors (1).

66225043 is an equidigital number, since it uses as much as digits as its factorization.

66225043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 66225043 is about 8137.8770573166. The cubic root of 66225043 is about 404.5828005799.

The spelling of 66225043 in words is "sixty-six million, two hundred twenty-five thousand, forty-three".