30666049 has 2 divisors, whose sum is σ = 30666050. Its totient is φ = 30666048.

The previous prime is 30666029. The next prime is 30666067. The reversal of 30666049 is 94066603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23590449 + 7075600 = 4857^2 + 2660^2 .

It is a cyclic number.

It is not a de Polignac number, because 30666049 - 2¹¹ = 30664001 is a prime.

It is a super-2 number, since 2×30666049² = 1880813122540802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30666029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15333024 + 15333025.

It is an arithmetic number, because the mean of its divisors is an integer number (15333025).

Almost surely, 2^30666049 is an apocalyptic number.

It is an amenable number.

30666049 is a deficient number, since it is larger than the sum of its proper divisors (1).

30666049 is an equidigital number, since it uses as much as digits as its factorization.

30666049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 30666049 is about 5537.6934729181. The cubic root of 30666049 is about 313.0059609558.

The spelling of 30666049 in words is "thirty million, six hundred sixty-six thousand, forty-nine".