999255307 has 2 divisors, whose sum is σ = 999255308. Its totient is φ = 999255306.

The previous prime is 999255287. The next prime is 999255331. The reversal of 999255307 is 703552999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999255307 - 2¹¹ = 999253259 is a prime.

It is a super-2 number, since 2×999255307² = 1997022337135328498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (999252307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499627653 + 499627654.

It is an arithmetic number, because the mean of its divisors is an integer number (499627654).

Almost surely, 2^999255307 is an apocalyptic number.

999255307 is a deficient number, since it is larger than the sum of its proper divisors (1).

999255307 is an equidigital number, since it uses as much as digits as its factorization.

999255307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 765450, while the sum is 49.

The square root of 999255307 is about 31610.9997785581. Note that the first 3 decimals coincide. The cubic root of 999255307 is about 999.7517073559.

The spelling of 999255307 in words is "nine hundred ninety-nine million, two hundred fifty-five thousand, three hundred seven".