255320255 has 4 divisors (see below), whose sum is σ = 306384312. Its totient is φ = 204256200.

The previous prime is 255320231. The next prime is 255320257. The reversal of 255320255 is 552023552.

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

It is not a de Polignac number, because 255320255 - 2¹⁴ = 255303871 is a prime.

It is a super-2 number, since 2×255320255² = 130376865226530050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255320257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25532021 + ... + 25532030.

It is an arithmetic number, because the mean of its divisors is an integer number (76596078).

Almost surely, 2^255320255 is an apocalyptic number.

255320255 is a deficient number, since it is larger than the sum of its proper divisors (51064057).

255320255 is an equidigital number, since it uses as much as digits as its factorization.

255320255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51064056.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 255320255 is about 15978.7438492517. The cubic root of 255320255 is about 634.3979289277.

The spelling of 255320255 in words is "two hundred fifty-five million, three hundred twenty thousand, two hundred fifty-five".