255320001 has 6 divisors (see below), whose sum is σ = 368795570. Its totient is φ = 170213328.

The previous prime is 255319951. The next prime is 255320003. The reversal of 255320001 is 100023552.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 206669376 + 48650625 = 14376^2 + 6975^2 .

It is not a de Polignac number, because 255320001 - 2⁷ = 255319873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255320003) 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 5 ways as a sum of consecutive naturals, for example, 14184436 + ... + 14184453.

Almost surely, 2^255320001 is an apocalyptic number.

It is an amenable number.

255320001 is a deficient number, since it is larger than the sum of its proper divisors (113475569).

255320001 is a wasteful number, since it uses less digits than its factorization.

255320001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28368895 (or 28368892 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 255320001 is about 15978.7359011907. The cubic root of 255320001 is about 634.3977185551.

Adding to 255320001 its reverse (100023552), we get a palindrome (355343553).

The spelling of 255320001 in words is "two hundred fifty-five million, three hundred twenty thousand, one".