255020618 has 4 divisors (see below), whose sum is σ = 382530930. Its totient is φ = 127510308.

The previous prime is 255020617. The next prime is 255020629. The reversal of 255020618 is 816020552.

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

It can be written as a sum of positive squares in only one way, i.e., 188320729 + 66699889 = 13723^2 + 8167^2 .

It is not an unprimeable number, because it can be changed into a prime (255020617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63755153 + ... + 63755156.

Almost surely, 2^255020618 is an apocalyptic number.

255020618 is a deficient number, since it is larger than the sum of its proper divisors (127510312).

255020618 is a wasteful number, since it uses less digits than its factorization.

255020618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127510311.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 255020618 is about 15969.3649842441. The cubic root of 255020618 is about 634.1496609868.

The spelling of 255020618 in words is "two hundred fifty-five million, twenty thousand, six hundred eighteen".