255651955 has 16 divisors (see below), whose sum is σ = 330724800. Its totient is φ = 188592768.

The previous prime is 255651943. The next prime is 255651959. The reversal of 255651955 is 559156552.

It is a de Polignac number, because none of the positive numbers 2^k-255651955 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (255651959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99021 + ... + 101569.

It is an arithmetic number, because the mean of its divisors is an integer number (20670300).

Almost surely, 2^255651955 is an apocalyptic number.

255651955 is a deficient number, since it is larger than the sum of its proper divisors (75072845).

255651955 is a wasteful number, since it uses less digits than its factorization.

255651955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110.

The product of its digits is 337500, while the sum is 43.

The square root of 255651955 is about 15989.1198944782. The cubic root of 255651955 is about 634.6725366381.

The spelling of 255651955 in words is "two hundred fifty-five million, six hundred fifty-one thousand, nine hundred fifty-five".