255565355 has 4 divisors (see below), whose sum is σ = 306678432. Its totient is φ = 204452280.

The previous prime is 255565339. The next prime is 255565357. The reversal of 255565355 is 553565552.

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

It is not a de Polignac number, because 255565355 - 2⁴ = 255565339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255565357) 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, 25556531 + ... + 25556540.

It is an arithmetic number, because the mean of its divisors is an integer number (76669608).

Almost surely, 2^255565355 is an apocalyptic number.

255565355 is a deficient number, since it is larger than the sum of its proper divisors (51113077).

255565355 is an equidigital number, since it uses as much as digits as its factorization.

255565355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51113076.

The product of its digits is 562500, while the sum is 41.

The square root of 255565355 is about 15986.4115735834. The cubic root of 255565355 is about 634.6008651751.

The spelling of 255565355 in words is "two hundred fifty-five million, five hundred sixty-five thousand, three hundred fifty-five".