255245665207 has 4 divisors (see below), whose sum is σ = 274879947160. Its totient is φ = 235611383256.

The previous prime is 255245665159. The next prime is 255245665211. The reversal of 255245665207 is 702566542552.

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 255245665207 - 2¹¹ = 255245663159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255245665307) 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, 9817140957 + ... + 9817140982.

It is an arithmetic number, because the mean of its divisors is an integer number (68719986790).

Almost surely, 2^255245665207 is an apocalyptic number.

255245665207 is a deficient number, since it is larger than the sum of its proper divisors (19634281953).

255245665207 is a wasteful number, since it uses less digits than its factorization.

255245665207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19634281952.

The product of its (nonzero) digits is 5040000, while the sum is 49.

The spelling of 255245665207 in words is "two hundred fifty-five billion, two hundred forty-five million, six hundred sixty-five thousand, two hundred seven".