266256007 has 2 divisors, whose sum is σ = 266256008. Its totient is φ = 266256006.

The previous prime is 266255999. The next prime is 266256017. The reversal of 266256007 is 700652662.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266256007 - 2³ = 266255999 is a prime.

It is a super-2 number, since 2×266256007² = 141784522527168098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266256017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133128003 + 133128004.

It is an arithmetic number, because the mean of its divisors is an integer number (133128004).

Almost surely, 2^266256007 is an apocalyptic number.

266256007 is a deficient number, since it is larger than the sum of its proper divisors (1).

266256007 is an equidigital number, since it uses as much as digits as its factorization.

266256007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 266256007 is about 16317.3529409644. The cubic root of 266256007 is about 643.3290136955.

The spelling of 266256007 in words is "two hundred sixty-six million, two hundred fifty-six thousand, seven".