608991255 has 24 divisors (see below), whose sum is σ = 1117679472. Its totient is φ = 305689344.

The previous prime is 608991247. The next prime is 608991281. The reversal of 608991255 is 552199806.

It is not a de Polignac number, because 608991255 - 2³ = 608991247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 608991255.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 397269 + ... + 398798.

It is an arithmetic number, because the mean of its divisors is an integer number (46569978).

Almost surely, 2^608991255 is an apocalyptic number.

608991255 is a deficient number, since it is larger than the sum of its proper divisors (508688217).

608991255 is a wasteful number, since it uses less digits than its factorization.

608991255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796095 (or 796092 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 608991255 is about 24677.7481752286. The cubic root of 608991255 is about 847.6248595636.

It can be divided in two parts, 6089 and 91255, that added together give a square (97344 = 312²).

The spelling of 608991255 in words is "six hundred eight million, nine hundred ninety-one thousand, two hundred fifty-five".