255805293 has 8 divisors (see below), whose sum is σ = 341821888. Its totient is φ = 170162784.

The previous prime is 255805283. The next prime is 255805337. The reversal of 255805293 is 392508552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255805293 - 2¹⁴ = 255788909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255805223) 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 7 ways as a sum of consecutive naturals, for example, 91921 + ... + 94662.

It is an arithmetic number, because the mean of its divisors is an integer number (42727736).

Almost surely, 2^255805293 is an apocalyptic number.

It is an amenable number.

255805293 is a deficient number, since it is larger than the sum of its proper divisors (86016595).

255805293 is a wasteful number, since it uses less digits than its factorization.

255805293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187043.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 255805293 is about 15993.9142488635. The cubic root of 255805293 is about 634.7994017828.

The spelling of 255805293 in words is "two hundred fifty-five million, eight hundred five thousand, two hundred ninety-three".