255389849 has 16 divisors (see below), whose sum is σ = 315833280. Its totient is φ = 203031360.

The previous prime is 255389821. The next prime is 255389879. The reversal of 255389849 is 948983552.

It is a cyclic number.

It is not a de Polignac number, because 255389849 - 2²⁰ = 254341273 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 255389849.

It is not an unprimeable number, because it can be changed into a prime (255389879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44282 + ... + 49715.

It is an arithmetic number, because the mean of its divisors is an integer number (19739580).

Almost surely, 2^255389849 is an apocalyptic number.

It is an amenable number.

255389849 is a deficient number, since it is larger than the sum of its proper divisors (60443431).

255389849 is a wasteful number, since it uses less digits than its factorization.

255389849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94040.

The product of its digits is 3110400, while the sum is 53.

The square root of 255389849 is about 15980.9214064772. The cubic root of 255389849 is about 634.4555640974.

The spelling of 255389849 in words is "two hundred fifty-five million, three hundred eighty-nine thousand, eight hundred forty-nine".