255748865 has 8 divisors (see below), whose sum is σ = 306998208. Its totient is φ = 204532720.

The previous prime is 255748819. The next prime is 255748877. The reversal of 255748865 is 568847552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255748865 - 2⁸ = 255748609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14204 + ... + 26706.

It is an arithmetic number, because the mean of its divisors is an integer number (38374776).

Almost surely, 2^255748865 is an apocalyptic number.

It is an amenable number.

255748865 is a deficient number, since it is larger than the sum of its proper divisors (51249343).

255748865 is a wasteful number, since it uses less digits than its factorization.

255748865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16599.

The product of its digits is 2688000, while the sum is 50.

The square root of 255748865 is about 15992.1501055987. The cubic root of 255748865 is about 634.7527216243.

The spelling of 255748865 in words is "two hundred fifty-five million, seven hundred forty-eight thousand, eight hundred sixty-five".