255500907 has 4 divisors (see below), whose sum is σ = 340667880. Its totient is φ = 170333936.

The previous prime is 255500893. The next prime is 255500929. The reversal of 255500907 is 709005552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255500907 - 2⁷ = 255500779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255507907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42583482 + ... + 42583487.

It is an arithmetic number, because the mean of its divisors is an integer number (85166970).

Almost surely, 2^255500907 is an apocalyptic number.

255500907 is a deficient number, since it is larger than the sum of its proper divisors (85166973).

255500907 is an equidigital number, since it uses as much as digits as its factorization.

255500907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85166972.

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 255500907 is about 15984.3957345907. The cubic root of 255500907 is about 634.5475165317.

The spelling of 255500907 in words is "two hundred fifty-five million, five hundred thousand, nine hundred seven".