255530401 has 8 divisors (see below), whose sum is σ = 293289984. Its totient is φ = 218084640.

The previous prime is 255530377. The next prime is 255530413. The reversal of 255530401 is 104035552.

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 255530401 - 2⁵ = 255530369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255530461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76705 + ... + 79966.

It is an arithmetic number, because the mean of its divisors is an integer number (36661248).

Almost surely, 2^255530401 is an apocalyptic number.

It is an amenable number.

255530401 is a deficient number, since it is larger than the sum of its proper divisors (37759583).

255530401 is a wasteful number, since it uses less digits than its factorization.

255530401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156911.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 255530401 is about 15985.3182952358. The cubic root of 255530401 is about 634.5719321324.

Adding to 255530401 its reverse (104035552), we get a palindrome (359565953).

The spelling of 255530401 in words is "two hundred fifty-five million, five hundred thirty thousand, four hundred one".