255404133 has 48 divisors (see below), whose sum is σ = 397196800. Its totient is φ = 157852800.

The previous prime is 255404089. The next prime is 255404143. The reversal of 255404133 is 331404552.

255404133 is a `hidden beast` number, since 255 + 404 + 1 + 3 + 3 = 666.

255404133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 255404133 - 2⁸ = 255403877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255404097 and 255404106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255404143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 731643 + ... + 731991.

Almost surely, 2^255404133 is an apocalyptic number.

It is an amenable number.

255404133 is a deficient number, since it is larger than the sum of its proper divisors (141792667).

255404133 is a wasteful number, since it uses less digits than its factorization.

255404133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 255404133 is about 15981.3683081268. The cubic root of 255404133 is about 634.4673922813.

Adding to 255404133 its reverse (331404552), we get a palindrome (586808685).

The spelling of 255404133 in words is "two hundred fifty-five million, four hundred four thousand, one hundred thirty-three".