1066600253 has 2 divisors, whose sum is σ = 1066600254. Its totient is φ = 1066600252.

The previous prime is 1066600219. The next prime is 1066600261. The reversal of 1066600253 is 3520066601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1037677369 + 28922884 = 32213^2 + 5378^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066600253 - 2⁸ = 1066599997 is a prime.

It is a super-2 number, since 2×1066600253² = 2275272199399328018, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066600273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533300126 + 533300127.

It is an arithmetic number, because the mean of its divisors is an integer number (533300127).

Almost surely, 2^1066600253 is an apocalyptic number.

It is an amenable number.

1066600253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066600253 is an equidigital number, since it uses as much as digits as its factorization.

1066600253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1066600253 is about 32658.8464738117. The cubic root of 1066600253 is about 1021.7247038266.

Adding to 1066600253 its reverse (3520066601), we get a palindrome (4586666854).

The spelling of 1066600253 in words is "one billion, sixty-six million, six hundred thousand, two hundred fifty-three".