255800265 has 32 divisors (see below), whose sum is σ = 468357120. Its totient is φ = 116785344.

The previous prime is 255800263. The next prime is 255800269. The reversal of 255800265 is 562008552.

It is not a de Polignac number, because 255800265 - 2¹ = 255800263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255800261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137572 + ... + 139418.

It is an arithmetic number, because the mean of its divisors is an integer number (14636160).

Almost surely, 2^255800265 is an apocalyptic number.

It is an amenable number.

255800265 is a deficient number, since it is larger than the sum of its proper divisors (212556855).

255800265 is a wasteful number, since it uses less digits than its factorization.

255800265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 255800265 is about 15993.7570633044. The cubic root of 255800265 is about 634.7952426399.

The spelling of 255800265 in words is "two hundred fifty-five million, eight hundred thousand, two hundred sixty-five".