255684345 has 16 divisors (see below), whose sum is σ = 467537280. Its totient is φ = 116884224.

The previous prime is 255684343. The next prime is 255684389. The reversal of 255684345 is 543486552.

It is not a de Polignac number, because 255684345 - 2¹ = 255684343 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 255684297 and 255684306.

It is not an unprimeable number, because it can be changed into a prime (255684343) 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, 1217440 + ... + 1217649.

It is an arithmetic number, because the mean of its divisors is an integer number (29221080).

Almost surely, 2^255684345 is an apocalyptic number.

It is an amenable number.

255684345 is a deficient number, since it is larger than the sum of its proper divisors (211852935).

255684345 is a wasteful number, since it uses less digits than its factorization.

255684345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435104.

The product of its digits is 576000, while the sum is 42.

The square root of 255684345 is about 15990.1327386611. The cubic root of 255684345 is about 634.6993389305.

The spelling of 255684345 in words is "two hundred fifty-five million, six hundred eighty-four thousand, three hundred forty-five".