255797543 has 4 divisors (see below), whose sum is σ = 257750328. Its totient is φ = 253844760.

The previous prime is 255797537. The next prime is 255797569. The reversal of 255797543 is 345797552.

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 255797543 - 2⁴ = 255797527 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 (255797533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976196 + ... + 976457.

It is an arithmetic number, because the mean of its divisors is an integer number (64437582).

Almost surely, 2^255797543 is an apocalyptic number.

255797543 is a deficient number, since it is larger than the sum of its proper divisors (1952785).

255797543 is a wasteful number, since it uses less digits than its factorization.

255797543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952784.

The product of its digits is 1323000, while the sum is 47.

The square root of 255797543 is about 15993.6719673751. The cubic root of 255797543 is about 634.7929909888.

Subtracting 255797543 from its reverse (345797552), we obtain a palindrome (90000009).

The spelling of 255797543 in words is "two hundred fifty-five million, seven hundred ninety-seven thousand, five hundred forty-three".