66056233 has 2 divisors, whose sum is σ = 66056234. Its totient is φ = 66056232.

The previous prime is 66056231. The next prime is 66056261. The reversal of 66056233 is 33265066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48483369 + 17572864 = 6963^2 + 4192^2 .

It is a cyclic number.

It is not a de Polignac number, because 66056233 - 2¹ = 66056231 is a prime.

Together with 66056231, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 66056195 and 66056204.

It is not a weakly prime, because it can be changed into another prime (66056231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33028116 + 33028117.

It is an arithmetic number, because the mean of its divisors is an integer number (33028117).

Almost surely, 2^66056233 is an apocalyptic number.

It is an amenable number.

66056233 is a deficient number, since it is larger than the sum of its proper divisors (1).

66056233 is an equidigital number, since it uses as much as digits as its factorization.

66056233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 66056233 is about 8127.4985696707. The cubic root of 66056233 is about 404.2387427391.

The spelling of 66056233 in words is "sixty-six million, fifty-six thousand, two hundred thirty-three".