255704243 has 4 divisors (see below), whose sum is σ = 255820488. Its totient is φ = 255588000.

The previous prime is 255704237. The next prime is 255704263. The reversal of 255704243 is 342407552.

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

It is a cyclic number.

It is not a de Polignac number, because 255704243 - 2²² = 251509939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255704203) 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 3 ways as a sum of consecutive naturals, for example, 54758 + ... + 59243.

It is an arithmetic number, because the mean of its divisors is an integer number (63955122).

Almost surely, 2^255704243 is an apocalyptic number.

255704243 is a deficient number, since it is larger than the sum of its proper divisors (116245).

255704243 is a wasteful number, since it uses less digits than its factorization.

255704243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116244.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 255704243 is about 15990.7549227671. The cubic root of 255704243 is about 634.7158031374.

The spelling of 255704243 in words is "two hundred fifty-five million, seven hundred four thousand, two hundred forty-three".