255648235 has 4 divisors (see below), whose sum is σ = 306777888. Its totient is φ = 204518584.

The previous prime is 255648229. The next prime is 255648247. The reversal of 255648235 is 532846552.

It is a happy number.

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 255648235 - 2⁹ = 255647723 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25564819 + ... + 25564828.

It is an arithmetic number, because the mean of its divisors is an integer number (76694472).

Almost surely, 2^255648235 is an apocalyptic number.

255648235 is a deficient number, since it is larger than the sum of its proper divisors (51129653).

255648235 is an equidigital number, since it uses as much as digits as its factorization.

255648235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51129652.

The product of its digits is 288000, while the sum is 40.

The square root of 255648235 is about 15989.0035649505. The cubic root of 255648235 is about 634.6694582428.

The spelling of 255648235 in words is "two hundred fifty-five million, six hundred forty-eight thousand, two hundred thirty-five".