255607673 has 4 divisors (see below), whose sum is σ = 257085348. Its totient is φ = 254130000.

The previous prime is 255607663. The next prime is 255607687. The reversal of 255607673 is 376706552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 214095424 + 41512249 = 14632^2 + 6443^2 .

It is a cyclic number.

It is not a de Polignac number, because 255607673 - 2¹⁴ = 255591289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255607673.

It is not an unprimeable number, because it can be changed into a prime (255607663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738578 + ... + 738923.

It is an arithmetic number, because the mean of its divisors is an integer number (64271337).

Almost surely, 2^255607673 is an apocalyptic number.

It is an amenable number.

255607673 is a deficient number, since it is larger than the sum of its proper divisors (1477675).

255607673 is a wasteful number, since it uses less digits than its factorization.

255607673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477674.

The product of its (nonzero) digits is 264600, while the sum is 41.

The square root of 255607673 is about 15987.7350803671. The cubic root of 255607673 is about 634.6358902111.

It can be divided in two parts, 25560 and 7673, that added together give a palindrome (33233).

The spelling of 255607673 in words is "two hundred fifty-five million, six hundred seven thousand, six hundred seventy-three".