255313908 has 18 divisors (see below), whose sum is σ = 645376914. Its totient is φ = 85104624.

The previous prime is 255313907. The next prime is 255313943. The reversal of 255313908 is 809313552.

255313908 is a `hidden beast` number, since 2 + 553 + 13 + 90 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 255296484 + 17424 = 15978^2 + 132^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 7092053 = 255313908 / (2 + 5 + 5 + 3 + 1 + 3 + 9 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255313907) 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 5 ways as a sum of consecutive naturals, for example, 3545991 + ... + 3546062.

It is an arithmetic number, because the mean of its divisors is an integer number (35854273).

Almost surely, 2^255313908 is an apocalyptic number.

It is an amenable number.

255313908 is an abundant number, since it is smaller than the sum of its proper divisors (390063006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255313908 is a wasteful number, since it uses less digits than its factorization.

255313908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7092063 (or 7092058 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 255313908 is about 15978.5452404153. The cubic root of 255313908 is about 634.3926720566.

It can be divided in two parts, 2553 and 13908, that added together give a palindrome (16461).

The spelling of 255313908 in words is "two hundred fifty-five million, three hundred thirteen thousand, nine hundred eight".