255220543 has 4 divisors (see below), whose sum is σ = 255460360. Its totient is φ = 254980728.

The previous prime is 255220519. The next prime is 255220549. The reversal of 255220543 is 345022552.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255220543 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 (255220549) 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, 118305 + ... + 120442.

It is an arithmetic number, because the mean of its divisors is an integer number (63865090).

Almost surely, 2^255220543 is an apocalyptic number.

255220543 is a deficient number, since it is larger than the sum of its proper divisors (239817).

255220543 is a wasteful number, since it uses less digits than its factorization.

255220543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239816.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 255220543 is about 15975.6233994170. The cubic root of 255220543 is about 634.3153328918.

The spelling of 255220543 in words is "two hundred fifty-five million, two hundred twenty thousand, five hundred forty-three".