255402241 has 8 divisors (see below), whose sum is σ = 263102400. Its totient is φ = 247782192.

The previous prime is 255402239. The next prime is 255402247. The reversal of 255402241 is 142204552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255402241 - 2¹ = 255402239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255402247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13525 + ... + 26338.

It is an arithmetic number, because the mean of its divisors is an integer number (32887800).

Almost surely, 2^255402241 is an apocalyptic number.

It is an amenable number.

255402241 is a deficient number, since it is larger than the sum of its proper divisors (7700159).

255402241 is a wasteful number, since it uses less digits than its factorization.

255402241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40055.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 255402241 is about 15981.3091140870. The cubic root of 255402241 is about 634.4658255939.

Adding to 255402241 its reverse (142204552), we get a palindrome (397606793).

The spelling of 255402241 in words is "two hundred fifty-five million, four hundred two thousand, two hundred forty-one".