64066049 has 2 divisors, whose sum is σ = 64066050. Its totient is φ = 64066048.

The previous prime is 64066031. The next prime is 64066097. The reversal of 64066049 is 94066046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64000000 + 66049 = 8000^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 64066049 - 2²⁰ = 63017473 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (64066019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32033024 + 32033025.

It is an arithmetic number, because the mean of its divisors is an integer number (32033025).

Almost surely, 2^64066049 is an apocalyptic number.

It is an amenable number.

64066049 is a deficient number, since it is larger than the sum of its proper divisors (1).

64066049 is an equidigital number, since it uses as much as digits as its factorization.

64066049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 64066049 is about 8004.1269979930. The cubic root of 64066049 is about 400.1375547746.

The spelling of 64066049 in words is "sixty-four million, sixty-six thousand, forty-nine".