255502155 has 64 divisors (see below), whose sum is σ = 438681600. Its totient is φ = 126783360.

The previous prime is 255502141. The next prime is 255502157. The reversal of 255502155 is 551205552.

It is not a de Polignac number, because 255502155 - 2¹⁶ = 255436619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255502157) 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 63 ways as a sum of consecutive naturals, for example, 1838076 + ... + 1838214.

It is an arithmetic number, because the mean of its divisors is an integer number (6854400).

Almost surely, 2^255502155 is an apocalyptic number.

255502155 is a deficient number, since it is larger than the sum of its proper divisors (183179445).

255502155 is a wasteful number, since it uses less digits than its factorization.

255502155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 255502155 is about 15984.4347726155. The cubic root of 255502155 is about 634.5485496840.

The spelling of 255502155 in words is "two hundred fifty-five million, five hundred two thousand, one hundred fifty-five".