255542047 has 4 divisors (see below), whose sum is σ = 255578560. Its totient is φ = 255505536.

The previous prime is 255542041. The next prime is 255542057. The reversal of 255542047 is 740245552.

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 255542047 - 2⁷ = 255541919 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 (255542041) 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, 4098 + ... + 22975.

It is an arithmetic number, because the mean of its divisors is an integer number (63894640).

Almost surely, 2^255542047 is an apocalyptic number.

255542047 is a deficient number, since it is larger than the sum of its proper divisors (36513).

255542047 is an equidigital number, since it uses as much as digits as its factorization.

255542047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36512.

The product of its (nonzero) digits is 56000, while the sum is 34.

The square root of 255542047 is about 15985.6825628435. The cubic root of 255542047 is about 634.5815723584.

Adding to 255542047 its reverse (740245552), we get a palindrome (995787599).

The spelling of 255542047 in words is "two hundred fifty-five million, five hundred forty-two thousand, forty-seven".